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14 votes
Accepted

Shredded bits of material under my trainer

Yes, its tyre rubber. People typically use either old/worn, cheap hard compound or dedicated turbo tyres for this reason with wheel on style trainers. The bad news is that more typically sprays off ...
Andy P's user avatar
  • 18.3k
14 votes
Accepted

Trainer damaging rear tyre

Wear is normal. Riding on the road damages your tyre too, but you don't see the wear particles gathered in one spot. But additionally, riding on a trainer is harsh on a rear tyre and does cause ...
Criggie's user avatar
  • 123k
13 votes

What can be done to make a trainer work quieter?

I know this is an old question, but I think I have come up with a nice solution to this problem. I am an engineer and I have dealt with some vibration issues in scientific equipment. When I got my ...
Houston Fortney's user avatar
12 votes

Can a bike computer be used on the rear wheel?

Totally fine - its a good idea. You'll need to move the sensor and fit a second spoke magnet (or move your front wheel one) Another option would be fit an ant+ or bluetooth sensor and look at ...
Criggie's user avatar
  • 123k
11 votes
Accepted

How to play video games while cycling on trainer?

I can play like this for an hour or so Get a multi elevation desk (Like this one around $35 from Amazon) it allows you to lower and tilt the TV UP toward you reducing neck strain adding cheap armrest ...
Jay's user avatar
  • 126
11 votes
Accepted

How can I learn to sprint and ride out of the saddle?

If you want to improve balance and control out of the saddle at any speed, even freewheeling, you just have to practice doing it. Note that balance while pedaling out of the saddle on a trainer vs. ...
Argenti Apparatus's user avatar
10 votes
Accepted

Do you need brakes on a trainer / on rollers?

No. For fixed trainer, it should be obvious. For rollers, rolling resistance is higher on rollers than on flat surface. Wheels don't also have much momentum, so you can slow down by freewheeling for ...
ojs's user avatar
  • 22k
9 votes

Shredded bits of material under my trainer

Road tires are not designed to be used on a trainer and they will wear more rapidly than when used on the road. Optimize your rig Use a tire designed for trainers to reduce wear Here are some tips ...
David D's user avatar
  • 21.1k
9 votes
Accepted

Wahoo Kickr with 8 speed cassette?

No problem, you just need to fit a 1.85mm spacer on the freehub before inserting the cassette (included in the box of the trainer, except for refurbished trainers). For the rest, no calibration ...
Renaud's user avatar
  • 18.9k
8 votes

Can a bike computer be used on the rear wheel?

Yes you can, although my suggestion is buying another cycle computer rather than trying to re-fit an existing cycle computer as you appear to be asking for. I've always used a cadence cycle computer. ...
icc97's user avatar
  • 440
8 votes

How to play video games while cycling on trainer?

Buy a recumbent exercise bike instead and you'll be much more able to play games. But if you're training for serious upright riding rather than general fitness that will not be what you want. I have ...
Móż's user avatar
  • 23.5k
8 votes
Accepted

Bike trainer 11 speed cassette compatibility with Ultegra 6500 9 speed groupset

Can I do minimum upgrade to get my bike to fit 11 speed cassette? Nope. You'd need derailleurs, crank set, shifters, cassette and chain at least. Given that groupsets bought as separate components ...
Argenti Apparatus's user avatar
8 votes

Can I use a rim brake rear wheel in a disc brake bike, for indoor training?

The standard hub width for road wheels with QR is 130mm for non disc and 135mm for disc hubs. Even though you can force the frame to clamp around narrower hub, it is strongly recommended to add ...
ojs's user avatar
  • 22k
8 votes
Accepted

Can I use an 11-speed cassette with my 9 speed Claris bike?

No, you cannot. Not even when only using just certain 8 sprockets (yes, Claris is 8 speed, not 9). The dimensions are all different and the shifter and the rear derailleur will not be able to use it. ...
Vladimir F Героям слава's user avatar
7 votes

Should flywheels on stationary trainers be replaced periodically to avoid catastrophic failures caused by fatigue?

This is not an answer to your question but rather an update. Racermate has announced a recall for all "blue" flywheels, and they are replacing them. Here is the announcement and a form to get the ...
R. Chung's user avatar
  • 14.1k
7 votes

Low power while maintaining high cadence

64 watts is well within the margin of error of 60w target. Don't be afraid of going to your lowest gear on the trainer. You should be working up to your target cadence, if you can't hold 90 without ...
sjakubowski's user avatar
  • 1,313
7 votes
Accepted

Is this a real Kinetic?

Yes, it is a real Kinetic. The older Kinetics used to be black and had a much different logo. "But for some time now, I’ve been wondering how much different the Kurt Kinetic Road Machine is from my ‘...
SLR's user avatar
  • 383
7 votes

Why would I choose a bike trainer over a stationary bike?

The main difference is cost, both money and space. If you already own a bicycle then it is using up space whether you can ride it or not. If you want to use the existing bike on a trainer then that ...
Criggie's user avatar
  • 123k
7 votes
Accepted

Could one predict from power data whether a cyclist is standing or sitting?

The short answer is: with power data alone? No. With power and speed data? Yes, sometimes. The longer answer is an explanation of the conditions under which one can sometimes tell. First, here is Fig. ...
R. Chung's user avatar
  • 14.1k
7 votes

Is it possible to swap between CS-R7000 and CS-R8000 cassettes on Trek Émonda SL 5 Disc 2022?

You can swap any road cassette from Shimano and SRAM on your bike, provided they have the same number of sprockets, of course. They are interchangeable. You might check the chain stretch of your ...
Carel's user avatar
  • 8,299
6 votes

What are some recommendations for a trainer to get better at going uphill?

Whilst it is true that there are some differences in muscle recruitment between pedalling uphill and on the flat, the main difficulty hills present is an increased power output for a sustained period ...
Andy P's user avatar
  • 18.3k
6 votes

Can a bike computer be used on the rear wheel?

Short answer: Yes. Not so short answer: It depends, since most bike computer sensors (The Reed switch / Hall sensor) are designed for a front fork - spoke clearance and usually this is smaller when ...
Lementor's user avatar
  • 334
6 votes

Why do my knees hurt when I use a trainer?

Thanks to @R.Chung I was able to do some research and figure out what my problem might be. This article, Climbing vs time-trialling: same effort, different power output, explains in great detail the ...
npsantini's user avatar
  • 1,897
6 votes
Accepted

How to set up a Kickr Core to work with my Garmin, dynamically change "elevations" (resistance), etc

Yes, you can do this with your Edge 820. You need to pair the Kickr Core to the Edge 820 using the sensor type “Indoor Trainer”. Menu > Training > Indoor Trainer > Pair ANT+ Bike Trainer You can “...
user7761803's user avatar
6 votes

How to get a 7-speed bike with a freewheel on a direct drive trainer

As Daniel Hicks said in his comment, it doesn't matter what's on her bike's wheel. The problem will be that her drivetrain is set up for 7 speeds, and you'll be putting an 11-speed cassette on the ...
Adam Rice's user avatar
  • 29.7k
6 votes

When is it time to replace my trainer tire

I wouldn't hesitate using a tyre in that condition on the trainer, in fact that's exactly the sort of condition i might expect to start using a tyre on the trainer. The small cracks likely mean the ...
Andy P's user avatar
  • 18.3k
6 votes

Could one predict from power data whether a cyclist is standing or sitting?

There is a problem here in that there is currently no sensor on the market (that i'm aware of) to measure sitting/standing. And unless i'm misunderstanding ML, we would need that input into our data ...
Andy P's user avatar
  • 18.3k
6 votes
Accepted

Why does my chain make grinding noise and vibration when I put my bike on my Wahoo Kickr?

I get a grinding noise and vibration when in some gears... Many gears are just fine, but the middle section gives the vibration I had this exact issue on a wheel mounted cassette (on a bike, not a ...
Saaru Lindestøkke's user avatar
6 votes
Accepted

Is it possible to swap between CS-R7000 and CS-R8000 cassettes on Trek Émonda SL 5 Disc 2022?

Shimano produce a compatibility chart for its products: https://productinfo.shimano.com/#/com?cid=C-453&acid=C-454 It shows that these cassettes are compatible and you can just swap the cassettes.
Andy P's user avatar
  • 18.3k
6 votes
Accepted

Can I run 11-32t on my Bike and 11-28t on my smart trainer using the same bike?

Yes, you can run the 11-28 on the trainer while running an 11-32 on the wheel used when riding outdoors. If the bike is set up correctly for the 11-32, the 11-28 will run identically on the 11 cog for ...
Ted Hohl's user avatar
  • 6,162

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