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Shimano STI brake/shifters + top-mount brake levers(4 posts)

Shimano STI brake/shifters + top-mount brake leversDowntownBrown
Nov 14, 2003 7:20 AM
Can anyone give me some step-by-step direction on how to adjust/fine-tune my STI brake levers and top-mount brake levers together. I am new to cyclocross and this set-up is confusing me a little bit.

Thanks.
Doug
Just did this myselfTWD
Nov 14, 2003 8:51 AM
I just did the install myself a week or so ago. It was pretty simple, but takes a bit of time if you are meticulous about getting things perfect.

For starters cyclocross world has a how to on their website.

http://www.cyclocrossworld.com/howto/howto_brake_lever.htm

Also, check the owners manual on the top mount levers if you have it. The tektro instructions didn't look too bad, not that I really read them.

The most difficult part is to getting the housing cut to the proper length, particularly for the front brake where you have a tight bend to the cable hanger at the headset. A little trial and error is in order. If you go too long, the cable has to run through convoluted s-curve to get to the hanger, too short and you'll start to kink the housing when you pull the top mount lever. It helps to have some extra lengths of housing to play with if you screw up and cut it too short. Start long and trim a little off at a time till you get it to where you want it. Making a clean cut on the housing is really important to getting smooth braking. A dremel tool with a fiberglass cutoff wheel works wonders for cutting the housing.

Once you have the brake housing to the proper length, you pretty much set the brakes up as you normally would. There isn't much fine tuning that you can do, outside of playing with normal brake adjustments and the barrel adjuster on the top mount lever.

I found that at least with the tektro top mount levers, they feel a bit more firm than the STI lever does. I get about the same amount of braking power out of the top mount as I do from the STI lever at the hoods, but not as much as braking from the drops.

Hopefully that answers your question.
Just did this myselfskinl19
Nov 15, 2003 1:29 PM
I also have the Tektro top mounts and as TWD wrote, they are firmer than the STI levers, particularly for the back. I don't like the way the back cable hanger is on the CX-4 anyway and this may contribute to the problem.
Just did this myselfDowntownBrown
Nov 16, 2003 3:04 PM
Thanks for your help!