Helmet Test - Standard vs Aero

Ever since I purchased my Rudy Wingspan helmet (about 6 weeks ago), I wondered how much faster it might be.  I have raced with it twice now, and had really good bike splits for each race.  But I still wanted to find out just how much faster it was.  I remember seeing some articles stating that over a 40k (25mile) time trial, these aero helmets should save somewhere in the region of 1 minute.
So I decided to perform a (non-scientific) test.  Since I don’t have a fancy bike computer or a power meter I had to go by my perceived effort, HR monitor and simple cateye bike computer.
The Helmets
Bell standard road helmet vs Rudy Project Wingspan

as you can see on the Wingspan, I used the mesh cover (right under the number from my last race).  The other options are a solid insert (no airflow) or no insert for maximum airflow.  I went for the middle.  I also had the tail cover installed (see pic below with the tail cover on/off)

The test was conducted at Prince William Forrest, a great place to ride with a 7.25 mile loop that has it all, flat/rolling/fast and a some challenging hills.  I managed to get some time mid-week, so there were no cars.  For the whole ride I only saw 2 other cyclists.    I used my road bike with aero bars – exactly what I use when racing.



the chart above (thanks to mapmyride.com) shows the course profile – harder than most of the triathlon’s that I have competed in.

After a 10 minute warm-up I proceeded to complete a single lap using each helmet.  I started with the standard helmet then followed-up with the aero helmet.

this picture shows the start/finish line – I began each lap with a standing start, the lines painted on the road made it easy to accurately repeat the start/end of each lap.
Since the laps were around 21 minutes for 7.25 miles – it would give me a decent indicator about how much faster it is, without having to spend the whole day testing.  Plus a the short laps meant I didn’t get too fatigued, although even 1 lap is a really good workout.  My level of effort was hard the whole way.

The Results

	Lap Time	Avg Speed	Avg HR	Max Speed
Standard Helmet	21:32.7	20.1	148	42.1
Wingspan/Aero	21:11.4	20.4	155	44.4

All speeds are in MPH.  The aero helmet was 21.3 seconds faster, a decent time improvement.  The average HR was a little higher, I think mostly because of the hard effort for lap 1, and my starting hr was higher.  I did rest for a few minutes between laps, which gave me time to take a few pics of the stats for the first lap.  The last time I rode 2 laps around this course my 2nd lap HR was higher by 6bpm, so another 7bpm this time is close enough.   My HR is always highest at the end of the lap, since the last mile or so is significantly up hill.
the 2 pictures below show my bike computer’s average speeds for both laps.  sorry, the quality is low.
 
I tried to pace myself evenly for both laps, not favoring one lap over another, however I think I pushed the steep downhill a fraction harder on the 2nd lap (max speed went up from 42.1 to 44.4) – the hill is short and steep so would not have made much of a time difference.  the helmet surely made a little difference in max speed too.
So taking 21.3 seconds per 7.25 miles and extrapolating over standard race distances, we get the following:-

	Sprint	Olympic	half ironman	Ironman
Distance (Miles)	12	25	56	112
Time Saving (mm:ss)	0:35	1:13	2:45	5:29

these numbers are of course all subjective, but I think they represent a decent indication of time savings.  Actually for a flatter/faster course with a higher average speed the time saving could increase.  I think my cateye computer also measures a little long, mapmyride.com shows the lap at 7.2 miles.  so these times above could be even better.
What I did notice was a big difference in how the 2 helmets felt, or more specifically sounded.  The standard helmet was very loud with all of the wind rushing past my ears, especially when riding over 23mph (which was for a good part of the lap).  The aero helmet covers part of my ears, and that really helps with the noise levels, so it doesn’t sound like you are going as fast.  As I moved my head around (up/down) there was one position that cut the wind noise to almost zero.  I’m not sure if that is a faster position, or just a better position with relation to wind near my ears.  It happened as I was looking down more towards my front wheel rather than out at the road in front. Comfort wise (heat/head temperature) I didn’t notice a difference.  It probably helped that the weather was perfect for riding (mid-low 70’s) with not much wind.
The last time I rode this course was 6 weeks before.  I used the same equipment as lap 1 (standard helmet) and had exactly the save average HR.  the differences were

	Lap Time	Avg Speed (mph)	Avg HR	Max Speed
6 weeks prior	22:25.3	19.2	148	~42
test lap 1	21:32.7	20.1	148	42.1

so I was almost a minute faster for the same effort, after 6 weeks of pretty hard training.
So we can conclude that there is really no substitute for hard training!  In 6 weeks I improved almost 1 minute.  The helmet added another 21 seconds.  But those seconds came at no extra effort.  Add that to the 2 minutes I usually save when wearing a wetsuit and it starts to add up.
In my opinion the helmet and wetsuit are the best time/speed saving for the money spent.

a great day for a ride

I had a lot of fun completing this test, and would really like to do some more.  Some thoughts on future tests, given time (and budget)

• complete the same test with a power meter & better bike computer (edge 500)
  
• road bike vs Triathlon specific/TT bike (once I get one, perhaps 6 months away)
  
• race wheels vs standard wheels

Giant Acorn Olympic Tri 2010 Relay Race Report

Last year was my first year at triathlon’s.  My last race of the 2009 season was the Giant Acorn Sprint.  My friends Diane and Kathleen were also there competing.  Each of us is better at 1 of the 3 legs, and together we thought  we’d be able to do a decent relay time with Diane on the Swim, Kathleen on the run and me on the bike. 

With that in mind we thought it might be a fun way to end the season with a relay.  So that’s exactly what we did.  We chose the Olympic distance because the sprint distance seemed too short.

All three of us completed our first Olympic triathlon only 3 weeks before – at The Nation’s Triathlon so we had a good idea of what to expect for each of the 3 legs.

We arrived and got setup early and managed to get a great spot in transition – right next to the aisle.

The relay was the last wave, 18 minutes after the first wave.  Since i was doing the bike, i could sit back and be a spectator for the first 30 minutes of the race.

The first swimmers came out of the water in just over 24 minutes, 4 minutes ahead of us.  Diane had a really good swim and since all of the relay teams were in the same area in transition i had a good idea of our position at T1 (7th).   

Transition for relays are pretty easy, we were allowed to stand at our bikes, with helmet already on.  All we had to do was switch over the timing chip and i was away.  It was a different feeling running the bike through transition; usually i jogged, but this time i could run.  I passed a lot of people, especially on the uphill section just before the mount line.

I’ve worked hard on the bike for the last few months, which really showed with a great bike split at the Nation’s Tri (1:08:27).  My goal for this race was to beat that time.  I knew i could push hard because i didn’t have to follow up with a 10k run.  As i started on the bike, things felt really great. 

The relay teams were in the last swim wave, so that meant a lot of traffic on the bike course, especially on the first lap.  I found myself hailing ‘on your left’ a lot.   The bike course is a good one, mostly flat with some up/down hill sections, but one that you can keep a pretty good average.  The whole course is a single lane road, so there is really not much room to overtake, especially when it there are a lot of people on an up-hill section.  The one thing that really annoyed me is when people just would not keep to the left.  I often would see people riding right next to the middle of the road when no one else was around.  A  few were more scary; swerving out of nowhere.  I try to be as polite as i can letting people know i am there and want to pass with the standard ‘on your left’ call.  When i do this, i will often say thanks or offer word of encouragement to anyone who looked to be having a hard time.

The nice thing about the course was the markers on the road at every 5 miles.  This is a simple thing to do, with some orange spray paint, something that other races could learn from.  I use a cateye bike computer with speed and cadence, but i don’t use it to track distance during the race.  i like to get an idea of both my speed and current cadence, so that is what i usually have it set to.  I was already familiar with the course, however seeing these 5mile markers was a good check-point to monitor my progress.  Shortly after the first 5 mile marker there is a right hand turn from Moody Town Rd onto Kentucky Springs Rd/SR 652.  At this point the road is very smooth, and a little downhill.  The smooth surface is nice, especially since the other roads are a little rough.

After a slight decline there are a few hills.  I was really feeling good and passing a ton of people, especially on the uphill sections.  I don’t have the best bike, no carbon or anything fancy.  I have recently started using some clip-on aero bars (Profile T2+) which i really love, i was in them for most of the race, except for the some tighter turns and when needing to brake for some sections where there were tons of bikes in front.

At one point on the first lap, a few cars (the road was open) were stuck behind some of the slower bikers – i came up to them at the crest of the largest hill.  I had 2 choices, sit back and wait for them to move on, or pass the cars (on rt 652, with double yellow lines).  As much as i want to go fast, i know the rules and want to be safe.  that means no crossing the double yellow lines and basically being safe.  I tried to get the attention of the drivers ahead to give me a little room, and managed to squeeze by.  The extra bike training has really given me an extra kick if i need for passing or hills. 

I got to the end of lap 1 in exactly 33 minutes – ahead of schedule for a 1:08, now I’m thinking i can get close to 1:06!

the second lap was much easier, way less traffic to pass, but i still passed a lot of people.  I can only remember 3 people passing me for the whole 2 laps.  All of them were on really nice bikes TT bikes.  I passed many others with the full carbon TT and some with racing wheels.  This usually gives me a boost, with my alloy road bike.

for a lot of the 2nd lap – i found myself dueling with an age grouper, he had a really nice Cervelo P2C – he’d get more aero and pass me on the flat/downhill sections, and I'd come right back going up hill.  With about 5 miles to go he passed me again.  So I decided to try and drop him.  I upped the intensity all of the way to the finish and never saw him again!  Actually at the last turn i managed to pass 1 of the 3 people that passed me on the first lap.

I finished with a bike split of 1:05:42 and managed to negative split the 2nd lap by 18 seconds.  I couldn’t be happier about that!

T2 was fast, however it took me a few seconds to get the timing chip off.  I passed it to Kathleen and she headed out for the 10k run.  We were the first relay team out of T2! 

Kathleen put in a great run.  Diane and I walked up to the turn-around, right at the fork where you go left for the 2nd lap, or right to the finish.  We shouted words of encouragement for everyone we could.  After completing a few races now, i know how good it is to have people cheering you on, especially on the run.  Kathleen came past us in around 23 minutes for the first lap, and she looked strong.  We had a pretty good idea that we were still in 1st place, but we didn't know much about the other teams; and it is hard to see the ‘R’ marked on the legs of anyone coming by.  Kathleen is a great runner and gave it her all.  We moved a little closer to the finish line, and waited for her to come past for the final push to the finish.  She finished strong; our total time was 2:23:28 – good enough to win by over 3 minutes!  My first time on the podium.

here’s the relay results for the top 3 – full race results here Giant Acorn International 2010 Race results

so where did the team name J-SHORE come from?  Diane used the names of all of our kids :-

Jacob Sam Hugh Oliver Ruby Ethan

We had to wait a while for the awards ceremony.  To the credit of the race organizers, ceremony went quickly, and we got a nice engraved stone for our first place!

Takeaways:

• the bike training continues to produce results.  the last 2 races have been great! 
  I am at least 10% better than 2 months ago
• after the tough ride my legs felt good.  A little wobbly after a fast slightly downhill flying dismount, but i think i could have posted a decent 10k run.
• i am starting to think about purchasing a TT bike.  I’ve had some good races on my current (road) bike and think I'll improve my times with a real TT bike.  Perhaps I will start seriously looking early in 2011.  I really like the new Felt B16/B14.

In summary – this is a great race, not only because we did so well, but a good venue with a fast course.  I would definitely consider doing it again, but i haven’t really looked at my schedule for next year yet.  My main/’A’ races will be Eagleman 70.3 in June and the Nation’s Olympic distance again September – possibly the beach to battleship (70.3) in November.

Since this is my last race, of any kind, planned for this year; I'm officially in the off season!   I still have a lot of things to work on for next year.  The main thing i want to focus on is solid technique for the swim and run, and continue to improve on the bike.

Timex Global Trainer Giveaway

dcrainmaker is doing it again - this time giving away a Timex Global Trainer here

The Nation’s Triathlon 2010 – Race Report

First things first – how did it go? 
I finished in 2:28:11, 61 out of 496 for my AG.  This is by far my best race, substantially better than I had thought possible.  Before the race I created a chart of the best possible time I thought I could do (here).  This turned out to be 2:46.  I am still shocked I beat that time by so much.

My prep for this race was good (except for running), however I started getting some aches/pains on Friday before the race, and wasn’t feeling so good at all on Saturday morning.  I dosed up cold/flu medication and managed to feel ok on race day.  I was still congested, but I don’t think it affected the race too much.

On Saturday we got through packet pickup and the expo without problem, although parking close to the hotel was difficult.  Managed to pickup a few goodies at the expo too (transition bag, running visor, water bottle).

The forecast for Sunday’s race wasn’t good – rain overnight and continuing through the morning.  We got up at 5am and left the hotel at 5:45 to walk to the transition area.  It was raining, but it wasn’t too hard at that point.  By the time we got to the transition area it was coming down quite hard and was miserable.  It made setting up the transition area difficult, and it was really cold.  Many put on their wetsuits early just to keep warm. 

Pre-Race

There were 5,000 people registered to race, but a lot of people came to transition just to remove their bikes and go home.  I had a few open spaces next to my bike, which made setup easy.  I setup my bike and put a garbage bag over my running shoes/hat/race belt for T2 – to try and keep them dry.  Pumped the tires and was ready to go.  The race start was delayed 20mins, giving us all a little extra time to get ready.    As I was leaving the transition area, I realized that I forgot to attach my bento box to the bike.  Since it had the gels that I needed for the ride I quickly got back and attached it. 

Swim – 27:37 – Wave #13

The pre-swim area was well organized.  Sections were marked for each wave to assemble before being marshaled in to the water.   My wave was #13, the first of 3 40-44 waves (496 finishers in my age group).  I zipped up my wetsuit with about 8 minutes to go and was feeling pretty calm.   I positioned myself at the front of the wave as we walked to the jetty so I'd have time to get a few strokes in before the swim start.  I am really happy that it did this.  As the announcers said 30 seconds I could see some people still trying to get in to the water.

My plan for the swim was to not start too fast.  I wanted to swim just like I had done in training, focusing on being smooth and breathing every 3rd stroke.  I am very happy with the way the swim went.  The wetsuit definitely helped.  I kept pretty good form for the whole 1.5k.  One of the best things about this race was the swim buoys positioned at every 100meters, with the distance clearly marked.  This was a really good way to break the race down, all I had to do was focus on the next marker and just count them off.  Other races could really learn a lesson here.

There was a lot of bumping going on.  What I didn’t expect was running into people from the previous wave at the 300 meter mark, especially with the waves being 4 mins apart.

I was swimming quite well, and thinking my time would be pretty good – I was really hoping for a sub 30 time.  The turn around was at 600meters, at that point i could see a lot of people, some from 2 waves earlier.  It was often hard to see them and I bumped into a few (sorry).  I had to zig-zag a little but managed to keep a decent line for most of the race.

the last 200m was the hardest – so many people coming around 2 90degree turns towards the finish chute.

I started my watch at about 30 seconds before the race start and glanced at it as I exited the water, it was around 28 minutes!  I am really happy with that.  Official time was 27:37.  This was my best swim ever, significantly helped by the wetsuit.  I am happy that I followed my pre-race plan of taking it easy and finishing strong.

I didn’t notice much rain during the swim, and the water seemed clean enough.  It was definitely better than my last race in Culpeper.  So many people that I talked to were concerned about the thought of swimming in the Potomac.  It really wasn’t bad, I won’t think twice about doing it again next year.

T1 – 3:40

the distance from the swim exit to the transition area was long.  It took me almost 2 minutes to get to the transition area.  I think a 3:40 transition was pretty good.  Since I already had my bike shoes clipped in (see pic on left), all I had to do was take off the wetsuit and put on my helmet and glasses.

The wetsuit came off easily and I was out and on my way.  As I got close to the center aisle another competitor fell while taking his wetsuit off, his head crashed into my right thigh – ouch.  I stopped to make sure he was ok, then ran the bike out of transition.

 

 

 

Bike – 1:08:27 – 21.7mph

I was really looking forward to the bike portion of the race.  I had worked hard for the 4 weeks prior to this race, and my average speed was coming up.  I was hoping to finish around 1:18, just over 19mph.  The roads were wet, and the rain just kept coming for most of the ride, which slowed things down especially at the turn a round's and some other tight corners.  There were a lot of volunteers on the course that did an excellent job of warning us of tight turns and even some water hazards.

I was feeling really great on the bike, each time I looked down at my speed, I was over 20mph – often 23 or 24.  The course was very flat.  There were a few up and downs but mostly rolling.  Nothing difficult.  Most of the roads that I train on were much harder and I think this really helped me. 

there were 2 things that i didn’t like about the bike leg:-

• lack of mile markers.  I would have liked to see ones at 10, 15 & 20.  I did remember that the race website showed the first turn around was at mile 10.  I hit that in 29 minutes and change.  Once I saw that I knew I was in for a good ride time.
• some sections were narrow and a few sections had a lot of water.  with so many riding there were some places with a lot of people bunched up, as soon as the road opened up again I put in a surge to pass the pack.  there also seemed to be a lot of drafting – mostly unintentional I think.  Some people were definitely getting a sizeable advantage.  At least we were warned about the narrow sections, before the race and by the volunteers.

I kept a good steady effort, aiming for a good mix of speed, but not killing myself so I'd have something left for the run.  I tried to focus on a good cadence and spent most of the race in the 90’s – exactly as planned.

Even with the rain, the ride was over quickly.  Much faster than I had expected (by 10 minutes).  As I went past the Watergate hotel and the Kennedy center I realized that I was nearly finished, and it was about 1h 5mins into the bike leg.  The picture on the right is close to the finish of the bike leg.

The race organizers did an excellent job with the bike finish – signs were posted every 100meters, starting 500meters out.  There were a lot of people lining the streets cheering.  That was fun.

I had a fast dismount, didn’t really slow down much at all and left the bike running.  I think I passed over 10 people who stopped to get off the bike.  The flying dismount really saves time.

Final time was 1:08:27 – way better than I had thought possible.  The flat course really helped there.  Most of my training rides were around 19-19.5 mph, but with more hills and on hotter days. 

The cool day and rain helped a lot – I didn’t even go though my first water bottle (40oz speedfil).  I had a gel at 30mins and about 1hr in.

T2 – 1:50

Nothing exceptional, but a pretty good transition.  Got the shoes on quickly – no socks, put on the visor, race belt and picked up my small water bottle, the one that attaches to your palm.  In previous races i always felt like I needed to sip water more often, rather than take a bigger drink at aid stations.  I picked up the bottle at the expo before the race and I am so happy that I did.

Run – 46:39

The run was the portion of the race that I was most concerned about.  I didn’t really have a good idea of what time was possible.  Having 2 knee surgeries this year meant that I had not trained much, plus I have had a few calf problems recently too.  2 weeks before the race completed a 10k training run and managed to just break 50 minutes for the first time.  The next run after that i was going slow, and after 3 miles had some calf pain.  I didn’t run after that until the day before the race.

I started the run at a steady pace.  I was feeling great.  Usually my legs feel heavy after the bike leg, but this time i didn’t have that at all.  I think this is a result of some good training, and also good pacing on the bike.  My pace started out at around 8:30/mile and since i was feeling good i kept going faster.  The run was very flat, and with the rain easing and the cool temperature it was close to perfect running conditions.

I looked at my watch and after the fast swim and bike, I was 1:45 in to the race at the start of the run.  I had to look a few times to make sure I wasn’t seeing things.  I started to think that I had a shot at finishing within 2:30.  I couldn’t believe that I was even possible.

By mile 2 I felt some pain in my calf, but it didn’t really slow me down so i continued.  Actually i continued to pick up the pace each mile.  This felt really great. I continued a good steady pace and was passing a lot of people.  There were some really fast runners going past me, but not nearly as many as previous races.

The finish line was really well done, after passing under a bridge (14th st I think) there was a small rise and after that you could see the finish line about 400 yards away.  I put in a great final surge and finished the run in 46:39 – way exceeding my expectations.

I looked at my watch just after the finish – it said 2:28.  I couldn’t believe it.  I knew during the run I was going close to 2:30, but this was an incredible run, considering that I really haven’t trained for running.  The hard swimming and riding training that I have done have really increased my aerobic fitness, and this really helped. 

Final average pace: 7:32/mile – way better than any race before, especially for my first Olympic race.  I think the course might have been a little shorter than 10k too.

The finishing medal was a nice touch.

Post Race Review

I am looking forward to this race next year – anyone considering entering should really give it a try. the course is flat and fast, and very well organized.

I lined up after i finished at the timing tent, but they didn’t have the results at first.  I did manage to get back there about 30 minutes later.  It was nice to see my official time – and have it printed for me instead of crowding around some paper pinned to a board.

 

 

 

 

What are the things that i can take away from the race?

• I validated that my training is working.  I performed better than expected in all 3 legs.
• the wetsuit definitely helps.  I’ll wear it in every race that i am allowed
• the course was excellent and made for a fun race – hopefully next year without the rain
• the hand-held water bottle is a keeper!  may even use that for longer training runs
• the Speedfil drink system worked very well.  I could sip water as often as i liked without leaving the aero bars
• for the first time i used an aero helmet – the Rudy Project Wingspan.   I’m sure this helped take 1-2 minutes off the ride time.  I got it only a few days before the race and had not used it on the bike yet.  I am very happy that i did.
• race and pre-race nutrition was good. drank only water, consumed 2 gels on the bike and 2 enduralytes at the start of the run, continued sipping water throughout the bike/run (refilled once at mile 4 on the run).  Since it cool and raining, there was far less need to consume a lot of water.  Breakfast was a Hammer almond/raisin bar, airborne and a cold/flu tablet and water.  A packet of Powerbar Strawberry/Banana energy gel blasts (yum) while i was setting up and and a Hammer gel about 30-40 minutes before the swim start.  Drank a good amount of water throughout the morning before the race.
• my heart rate was definitely under control for the whole race.  Much lower and all previous races, even with the faster speed for each leg.  The last race i did, i averaged in the 180s for the swim alone, this race was 167 – the bike was in the low 160’s.  this shows that i was pacing pretty well.  Run average was 168 and up to 183 for the sprint to the finish. 

What can I improve?

• i still have more work to do on all 3 legs.  Mostly the run.  If i can stay injury free, i am really looking forward to next year/season.
• speed up transition times.  I think i can take 10-15 seconds from each.  perhaps just by running a little harder & putting on the race belt/number while running.

Final times:-

Finish Time	2:28:11	average/pace	heart rate avg/max
Swim	27:37	1:42/100m	167/175
T1	3:40
Bike	1:08:27	21.7 mph	161/166
T2	1:50
Run	46:39	7:32/mile	168/183
Age Group	61/496
Gender Place	385/2834
Overall Place	422/4391

 

To think about for next year

I think i can cut a good amount of time for next year.  If i can cut just 1 minute off each leg that will get me in the 2:25 range, but if i can really work the bike/run i think i could get down to around 2:20.  If i can maintain some continued steady swim progress, and some good run/bike training should get me there. 

At some point I would like to buy a Triathlon bike, but not before I am stronger on the bike itself.  I passed many people with the full aero bike, wheels and all (that was fun).  My philosophy is to work on the engine first, then when I think the my current bike is slowing me down, I’ll upgrade.  I am hoping to do this early in the season next year.  Added to that is the fact that i have to save for a new bike too!