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realistic gains to expect from a carbon wheelset
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 2012-07-19 3:20 PM |
Expert  1130    Fernandina Beach, FL |  Subject: realistic gains to expect from a carbon wheelsetSo I made the plunge and purchased a set of Reynolds Strike wheels (66mm). Now as I say in pretty much every post I'm no little guy, but what should I expect in a time gained by these wheels over 40k. Besides the obvious looks they'll get  ? My last tri I averaged 19.4 mph on the same course. |
| 2012-07-19 3:26 PM in reply to: #4320650 |
Master 2855  Kailua, Hawaii | Subject: RE: realistic gains to expect from a carbon wheelset maybe 2-3 seconds per mile ? |
| 2012-07-19 3:35 PM in reply to: #4320670 |
Expert 1130 Fernandina Beach, FL | Subject: RE: realistic gains to expect from a carbon wheelset so about a minute-minute and a half. should break 20 mph assuming similar conditions |
| 2012-07-19 3:58 PM in reply to: #4320650 |
Champion 9407 Montague Gold Mines, Nova Scotia | Subject: RE: realistic gains to expect from a carbon wheelset Best guess based on the data I've seen on those wheels - .5s to 1s per km. So 20-40s over 40km. Shane |
| 2012-07-19 4:18 PM in reply to: #4320650 |
Expert 1416 San Luis Obispo, CA | Subject: RE: realistic gains to expect from a carbon wheelset I'd be shocked if they got you more than a minute. |
| 2012-07-19 4:32 PM in reply to: #4320650 |
Expert 1130 Fernandina Beach, FL | Subject: RE: realistic gains to expect from a carbon wheelset Is it the wheel or my size that leads to low expectations? Assuming these are low expectations |
| 2012-07-19 5:07 PM in reply to: #4320804 |
| Subject: RE: realistic gains to expect from a carbon wheelset rjrankin83 - 2012-07-19 5:32 PM Is it the wheel or my size that leads to low expectations? Assuming these are low expectations Neither, it's reality. Okay, I'm saying this as a 230 pound guy with HED 90/60 setup. Wheels are really sweet and make you feel great but they're about 5-10 minutes in an ironman for Joe Sixpack and maybe 3-5 minutes for a 40K. If not exactly those then somewhere in that neighbourhood. Aerohelmet is the best bang for your buck, something like twice the time savings as wheels. Looks dorky but you're wearing spandex in public anyway  (edit) Oh, those numbers of mine aren't for the wheels alone, they add on a bit because you'll feel faster and you'll push harder because of them. Edited by DanielG 2012-07-19 5:08 PM |
| 2012-07-19 5:20 PM in reply to: #4320896 |
Expert 1130 Fernandina Beach, FL | Subject: RE: realistic gains to expect from a carbon wheelset Thanks that's more the response I was hoping to hear. I figured, at my weight, I wasn't getting much out of the wheels other than the look and sound. I'll have to consider the aero helmet and agree with the wearing spandex could I look and weirder mentality but I'd feel like a bigger dork going slow in those helmets. Safe to assume the LBS pushes upgrading the wheels so much because of the markup/revenue to them then? |
| 2012-07-19 5:33 PM in reply to: #4320650 |
Expert 1484 | Subject: RE: realistic gains to expect from a carbon wheelset your body is most of the drag experienced on a bike. correct bike fit can make a huge difference, then aero helmets, then wheels, then body suits, then shoe covers, then bits and pieces on the bike. good write up, there are many others. http://www.cyclespeed.com.au/g/1037443/getting-aero.html |
| 2012-07-19 5:56 PM in reply to: #4320650 |
Regular 988 Westfield, IN | Subject: RE: realistic gains to expect from a carbon wheelset What wheels are you coming from?if they were already semi aero, even less to be gained. I'd say a minute or so. |
| 2012-07-19 6:08 PM in reply to: #4320650 |
Expert 1130 Fernandina Beach, FL | Subject: RE: realistic gains to expect from a carbon wheelset coming from a stock wheel on a felt b16. not very aero/deep I believe |
| 2012-07-19 6:17 PM in reply to: #4320650 |
Extreme Veteran 1136 | Subject: RE: realistic gains to expect from a carbon wheelset I think the aero advantage in a race comes with the cumulative effect of helmet, wheels, tight fitting tri top, less water bottles all over your frame, and commitment to stay in aero as close to 100% of the time as possible. A lot of the speed benefit we see in races (on courses with similar elevation as we train) also comes from the fact that we aren't stopping at stop signs etc. My last race was the first time I raced with aero wheels (borrowed some HED 60's.) I saw a very significant increase in speed, but a lot of that was due to the course being very fast. |
| 2012-07-19 8:13 PM in reply to: #4320650 |
Extreme Veteran 863 West Michigan | Subject: RE: realistic gains to expect from a carbon wheelset Get a disc cover for your bike (I have one for my Reynolds) and it will definitely be a game changer. |
| 2012-07-20 3:09 AM in reply to: #4320650 |
| Member 566 | Subject: RE: realistic gains to expect from a carbon wheelset About 45 sec. for the front wheel and 30 for the rear over 40k. You should also be about 38grams lighter....the weight of 12 $100 bills. Edited by Trath-L33T 2012-07-20 3:09 AM |
| 2012-07-20 7:01 AM in reply to: #4320650 |
Pro 5892 , New Hampshire | Subject: RE: realistic gains to expect from a carbon wheelset If you really want to have potentially major impact on speed, get a bike fit. The rider does account for the vast majority of the drag, so that's where you should start. Wheels will help, but to the tune of 1-3 sec per km, so you'll see a small improvement. Where you may see an improvement is on a technical or hilly course. In a technical course, wheel stiffness and rotating weight comes into play (stiffness thru the corner and acceleration, lower rotating weight is easier to get up to speed after the corner). Hilly course, stiffness and rotating weight, stiffer wheels tend to climb better (less energy lost in side-to-side movement). |
| 2012-07-20 7:23 AM in reply to: #4320650 |
Expert 1130 Fernandina Beach, FL | Subject: RE: realistic gains to expect from a carbon wheelset Yeah I had a fit when I bought my bike (1.5 months ago) Will be going back next week to get refit as I've lost a few lbs and gotten more comfortable being aero. Atleast the wheels make my bike look good haha. Also plan on getting an aerojacket. Did a quick 8 miles this morning and was surprised at just how much you can feel the wind
Notice I understand the bars need to be cut/wires cleaned up. Also need to drop the risers on my rests I think. Was waiting for my second fitting.
Edited by rjrankin83 2012-07-20 7:26 AM |
| 2012-07-20 8:10 AM in reply to: #4320650 |
| 103 | Subject: RE: realistic gains to expect from a carbon wheelset If the new wheels are red then you'll go a hell of a lot faster!! |
| 2012-07-21 1:39 PM in reply to: #4320650 |
Expert 1130 Fernandina Beach, FL | Subject: RE: realistic gains to expect from a carbon wheelset shaved 10 minutes off my OLY time. Official times aren't posted yet but cateye had me holding 21+ on the bike and I made up a couple minutes on the run. Couldn't be happier with the wheels |
| 2012-07-21 3:07 PM in reply to: #4323369 |
Expert 1074 Tyrone, Georgia | Subject: RE: realistic gains to expect from a carbon wheelset rjrankin83 - 2012-07-21 2:39 PM shaved 10 minutes off my OLY time. Official times aren't posted yet but cateye had me holding 21+ on the bike and I made up a couple minutes on the run. Couldn't be happier with the wheels
That is impressive, would guess most of it was fitness and/or race conditions if you have been consistently training. Anyway, great job! |
| 2012-07-21 3:08 PM in reply to: #4323442 |
Expert 1130 Fernandina Beach, FL | Subject: RE: realistic gains to expect from a carbon wheelset yeah my fitness has gotten much better but for now I'm giving most the credit to the wheels haha. Race conditions were near identical. OWS was a little smoother but bike/run on same course same wind conditions Edited by rjrankin83 2012-07-21 3:09 PM |
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