login
Bike trainer questions
-
No new posts
 2008-10-27 9:28 AM |
Extreme Veteran  498   Carpinteria, Ca. |  Subject: Bike trainer questionsI just realized that there are a few times a week that I can fit in a trainer ride when it is impossible to get outside and ride, but have a few questions. This is a fluid something or another, I bought it 6-8 years ago when I was in the military and used it a bunch on a deployment right after I got my bike, but haven't used it since. 1. HR and cadence differences. My HR and cadence is way lower than comperable Perceived Exertion rates, what's the reason for that. 2. Also this thing gets hot as H E double L, is it worn out, or is that just expected? I am also looking for a cheap used 650 wheel to go with my 11-19 cassette, as I have to apply the brakes a tad to do standing intervals on my 12-27 now to keep from spinning out. thanks guys |
| 2008-10-27 12:28 PM in reply to: #1767471 |
Expert 810 Southeast | Subject: RE: Bike trainer questions ZekeB - 2008-10-27 10:28 AM I just realized that there are a few times a week that I can fit in a trainer ride when it is impossible to get outside and ride, but have a few questions. This is a fluid something or another, I bought it 6-8 years ago when I was in the military and used it a bunch on a deployment right after I got my bike, but haven't used it since. 1. HR and cadence differences. My HR and cadence is way lower than comperable Perceived Exertion rates, what's the reason for that. 2. Also this thing gets hot as H E double L, is it worn out, or is that just expected? I am also looking for a cheap used 650 wheel to go with my 11-19 cassette, as I have to apply the brakes a tad to do standing intervals on my 12-27 now to keep from spinning out. thanks guys 1. Not sure what you are asking. Are you saying that at equal RPE inside and outside your HR is lower inside? If effort on the bike really is the same, then something else is causing your HR to be higher outdoors. Who knows? Maybe riding outdoors makes you excited, or nervous. Could be a million things. (When I was recovering from a surgery by riding daily on a recumbant, I used to play online poker at the same time, and my HR would occasionally go up when I was involved in a big hand!) 2. Yes, they get hot. (At least, mine does.) You're converting mechanical work to heat. Edited by mdickson68 2008-10-27 12:28 PM |
| 2008-10-27 12:36 PM in reply to: #1767471 |
Extreme Veteran 498 Carpinteria, Ca. | Subject: RE: Bike trainer questions I feel like I am rocking my hips to the point of absurdity to keep my approx outside cadence of 95-100rpm, inside on the trainer. The same "perceived cadence in my head" reads @ approx 85 on the trainer as it does 95 outside. 95-100 and I am feeling like when I try and spin faster than 115rpm outside, when my hips start rocking on the saddle. I watched UGA play Saturday while riding and if anything shoud have seen it higher as I was yelling at times like I was being shot at. For instance, while standing and lightly applying the brakes to keep from spinning past my gearing going as hard as I could for 1min, my HR got almost to 180 after 45mins of riding and occasionally hammering, however this is what I averaged for my entire HIM! For the same exertion outside I am over 200bpm for that short time. I don't remember this thing getting this hot before. I was wondering if maybe it is "worn out" which is why it is getting so hot, as in frying pan hot! |
| 2008-10-28 5:53 AM in reply to: #1767471 |
Extreme Veteran 569 Colorado Springs, CO | Subject: RE: Bike trainer questions If your gearing out on the trainer... That is a lot of friction inside the resistance unit. They do get hot. That is why most trainers have the "fins" like those on various engines. It helps with cooling. I place a fan next to it and blow air over it. don't quit understand why your hips would be rocking unless your saddle is too high. (but then your hips would rock outside too, so not sure on that) I guess just try smoothing your pedal stroke even during your high exertions. |
| 2008-10-28 9:49 AM in reply to: #1767471 |
Expert 2547 The Woodlands, TX | Subject: RE: Bike trainer questions I had the same problem with the HR. When you ride on the road your bike will sway slightly underneath you to offset your hip action. The combination feels like a nice steady ride. When you lock the bike down and don't allow free motion, your hips are the only thing that can move, so you experience what's going on. The lower HR can be attributed to the number of muscles working, IMO. On a trainer you are really isolating a few key muscles. On the road there a number of supporting muscles that come into play for balance, steering, nuances in the road, etc. More muscles, the more your heart has to work, i.e. running vs cycling. Easier to get your HR higher running. On another thread there was discussion on trainer vs rollers. Rollers have a more realistic 'road' feel and would eliminate your hip issue. Of course if you stand on rollers you will shoot right off the front, so they have their drawbacks as well. TJ |
| 2008-10-28 11:45 AM in reply to: #1770214 |
| Expert 810 Southeast | Subject: RE: Bike trainer questions tjfry - 2008-10-28 10:49 AM I had the same problem with the HR. When you ride on the road your bike will sway slightly underneath you to offset your hip action. The combination feels like a nice steady ride. When you lock the bike down and don't allow free motion, your hips are the only thing that can move, so you experience what's going on. That was my reaction as well. I'm not an expert, but it sounds to me like your seat is too high, and this is getting masked outside, but becoming evident inside. I also find it takes me longer to get up to cadence indoors, but once I'm there, it feels about the same as outdoors. Yeah, they get that hot if you ride hard. At least, mine does. |
| 2008-10-28 2:44 PM in reply to: #1767471 |
Expert 1049 Burnaby, BC | Subject: RE: Bike trainer questions ZekeB - 2008-10-27 7:28 AM 1. HR and cadence differences. My HR and cadence is way lower than comperable Perceived Exertion rates, what's the reason for that. Where are you using the trainer? How much ventilation do you have? If you're stuffed into a small room in the basement next to the water heater with only a coal chute for ventilation, it will be much harder to do the same amount of work. Add a big, big fan to cool you off. I mean big. You should feel cold if you're not working. 2. Also this thing gets hot as H E double L, is it worn out, or is that just expected? I am also looking for a cheap used 650 wheel to go with my 11-19 cassette, as I have to apply the brakes a tad to do standing intervals on my 12-27 now to keep from spinning out. thanks guys Is the outside clean and dry or is it kind of oily? How tight are you pressing it against the tire? Remember, if you're a decent sprinter, you're putting out about 750W. Kinda like an electry frying pan on medium. I wouldn't put my hand on that either. |
| 2008-10-28 10:32 PM in reply to: #1767471 |
Extreme Veteran 498 Carpinteria, Ca. | Subject: RE: Bike trainer questions Thanks for the responses. It is a Cycleops Fluidtrainer and relatively clean on the heat dissipators. I lock it down rather tight to keep from spinning off the wheel, though I have a tendency to overtighten just about everything. Went for a regular outside ride today for the first time since I started back on the trainer, same results I had expected, way higher HR for similar perceived exertion. My saddle seems fine, maybe I need to experiment with the settings, but is as it was for my buildup for my last race, and only race for that matter, which was setup with a very competent bike-setter-upper. I will keep playing with this indoor training thing when I have to, but like most would rather be outside. Edited by ZekeB 2008-10-28 10:32 PM |
| 2008-10-28 10:47 PM in reply to: #1767471 |
Expert 608 St. Louis | Subject: RE: Bike trainer questions Even though I don't want too I always end up at a lower cadence inside than outside at the same speed.-- |
|
|
|
View profile
Add to friends
Go to training log
Go to race log
Send a message
View album
CONNECT WITH FACEBOOK