Join Date: Nov 2003
Bikes: Leader home built hardtail, Diamondback Response
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you will get a set of instructions with the cross levers when you buy them. You need to know the following things.
1. Cross levers come in 3 different sizes. 31.8mm for the bulged area (near the stem) for an oversized bar, 26mm for the bulged area of a standard non oversized road bar and 24mm if you wish to install them further outboard on the smaller diameter of either bar. The last option is useful if your stem clamp area tapers quickly on either side of the stem leaving very little mounting area.
2. Cross levers (also called interrupter levers) operate in the middle of your existing brake cable, they do not use a separate cable of their own. You mount the levers on the bars where you want them, pull the inner wire out of the housing, cut the housing at the entry point to the cyclocross lever, put the housing into the cyclocross lever from both sides (the part of your original housing on the hood side of the system into one side of the lever and the part of the original housing going to the brake into the other), rerun the inner cable and done.
After you set up the brakes again, the brake lever at the hoods will pull on the inner cable and the brakes will work. The cyclocross lever will push on the housing (making the housing longer is the same as making the cable shorter) and again the brakes will work.
Get some pictures of cyclocross levers installed and this will seem as easy as pie to you.