Take the 2-minute tour ×
Bicycles Stack Exchange is a question and answer site for people who build and repair bicycles, people who train cycling, or commute on bicycles. It's 100% free, no registration required.

I was planning on doing my winter training this year on a mountain bike (for ergonomic reasons), but it occurred to me that the skewer for the Active Braking Pivot on my Top Fuel might not be work well. In the below pic, you can see the metal flange which would sit in the trainer, I'm worried about it getting bent or otherwise damaged (I'm ~205lbs/94kg). For those not familiar with ABP, there's a pin that moves through the channel you can see at the end, which allows you to unscrew the skewer (the end cap is attached to the frame).

ABP

Has anyone had experience with using an ABP bike on a trainer, specifically with long-term regular use? I have a blackburn fluid trainer.

share|improve this question
    
Are you specifically asking for an alternative to the skewer? (If so, that could be in your question title, to help narrow the focus of the question.) –  Neil Fein Nov 23 '10 at 21:02
    
This link may be of help: ABP Explained. –  Neil Fein Nov 23 '10 at 21:05
    
My actual question is at the end, basically, will using my bike on the trainer a lot damage the pivot? –  Dana the Sane Nov 24 '10 at 1:00
    
I have the same problem with a Superfly 100 and i'm looking forward for an extra large skewer to overpass this bolt and fix it with is own bolt in the trainer.The dimension is about 25 cm for the skewer and i think will work perfect with ABP.Have any idea where i can find a skewer in this dimension to work with most of trainers? –  user5547 Nov 20 '12 at 10:08
    
I don't believe that I've ever come across one that long. –  Dana the Sane Nov 22 '12 at 20:39
add comment

1 Answer

up vote 5 down vote accepted

Almost certainly you will damage that pivot and possibly the suspension action. I've used a trainer with a normal quick release skewer, and it tends to mash up the drive side, even if it's a metal end. Plastic ones get destroyed - that's a lot of weight to be putting through something that isn't designed to be weight bearing in that fashion.

My trainer came with a big chunky metal QR skewer that weighed about twice as much as a normal one, but was designed to fit firmly in the trainer, for this reason, but I suspect from what you've said that won't be compatible with ABP.

Given that your setup is perhaps even more risky than using a normal skewer - damaging a fundamental part of the suspension, rather than a cheap QR skewer - I really wouldn't recommend using that bike with a trainer.

Have you considered rollers instead? They're a bit scary at first, but once you get used to them they're a lot less dull than a trainer, plus they're better for developing a smooth pedalling technique.

share|improve this answer
    
That explanation seems reasonable, I have a hard tail that I can use instead, so it's not the end of the world. Rollers are an idea, but I wanted something with variable resistance so I can work a bit harder. I'm planning on doing some SLED's and high cadence drills to work on my pedalling. –  Dana the Sane Nov 25 '10 at 16:30
    
Hardtail with a QR skewer that you don't care about (or ideally a dedicated trainer one) would be a much better idea. Personally I prefer rollers because they're less dull and you have to pedal in smooth circles, but a trainer is of course better for drills and variable resistance. –  Chris Betterton Nov 26 '10 at 10:19
    
Couldn't you vary the resistance on the rollers by changing the gear your bike is in? I've never used rollers, so maybe there's a reason why it wouldn't work, but it seems to me like it would work. Unless of course, even the hardest gear isn't that hard on rollers. –  Kibbee Nov 20 '12 at 14:13
add comment

Your Answer

 
discard

By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.