For a daily city bike i want to combine some older Shimano Components.
Is it possible to combine a Shimano XT V-Brake Lever (BL-M739) with a Shimano 105 SLR Front brake or are there any things i have to pay attention to?
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1 Answer
V-Brakes and calliper brakes operate with different lengths of cable being pulled.
V-Brake levers pull a lot more cable and in this set up, your lever throw will be too sort to be usable and have very little stopping power.
You can get adapters to go the other way, road levers with v-brakes, but I've never seen one go this way.
Your best bet would be to look for some flat bar levers for the calliper brakes you have. Almost any sold as a road lever should work.
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A lot of these parts are sold for "flat bar road bikes", though note that getting a new flat bar lever is more expensive than a set of v brakes.– BatmanCommented Dec 28, 2013 at 1:05
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Note you can also pull some old short pull brake levers from an old parts bin at your LBS/Co-op which should work (provided the age of the (super) SLR unit - IIRC some have some weird lever requirements in which case, check the manual for the particular brake.)– BatmanCommented Dec 28, 2013 at 1:16
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Bit hair-brained tonight and can't edit comments, but you can just wire a travel agent in reverse to do this as well (forward being short pull levers with long pull brakes, reverse being long pull levers with short pull brakes), but the price would also be as expensive as getting the right levers (travel agents aren't free). Just note that the additional cable stress of a travel agent on the cable isn't necessarily a good thing (they can fray cables).– BatmanCommented Dec 28, 2013 at 1:31
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To be fair, new levers aren't prohibitively expensive, nor are they hard to come by. universalcycles.com/shopping/index.php?category=1594 Additionally, used levers from canti-equipped mtbs are pretty ubiquitous.– WTHarperCommented Dec 28, 2013 at 3:13
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@Batman I think the travel agents are road levers to v-brake only. There's a little compatibility table at the bottom of that page. (Linear pull = v-brake).– alexCommented Dec 30, 2013 at 21:07