Cyclocross front mech cable setup

Simmo72
Simmo72 Posts: 262
edited October 2013 in Workshop
Hi

Building up my first cx bike and I'm a bit stumped with the front mech. The cable runs across the top tube and down the seat tube. Do I just attach it straight down, or do I need to run it so it comes up underneath? I only have 1 cable to hand and don't want to stuff it up.
Cheers

Comments

  • ugo.santalucia
    ugo.santalucia Posts: 28,310
    You need a top feed front derailleur, check out the ultegra one... once you have one, just clamp the cable
    left the forum March 2023
  • Monty Dog
    Monty Dog Posts: 20,614
    AFAIK Shimano make the the only top-pull road mech - it also works pretty well with Campagnolo Ergos as I've tried it. You can use a conventional bottom-pull mech with a clamp-on pulley (only works with round frame tubes):
    http://www.chainreactioncycles.com/dmr- ... -prod21878
    Some CX frames have a single 5mm threaded bush on the back of the seat-tube near the BB to take a pulley
    Make mine an Italian, with Campagnolo on the side..
  • Simmo72
    Simmo72 Posts: 262
    Cheers for the advice. I'll track down one of these pulleys

    Not had a good day building this frame, whilst transferring gear from an old frame:
    Rear mech pulley jockey wheel sheared, guess it was like this already
    Bottom bracket chewed up whilst getting it out - don't buy token gear, it's crap
    Chainset does not fit on new frame, rubs the rear triangle. Suppose I can add a wider bb.
    Longer wheelbase means I need a new chain.

    It's never fecking easy.

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