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Switching from drop bars to riser type bars

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Switching from drop bars to riser type bars

Old 03-17-09, 08:04 PM
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jpd73
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Switching from drop bars to riser type bars

I did a few searches but didn't find exactly what I was looking for. I want to switch the bars on my road bike from drop to riser (mtn. type) bars. My question is regarding my brake levers. Are there any brake levers compatible with caliper style brakes that will go with the riser bars? All the levers I've seen seem to be for "V" brakes not caliper style. Any help is appreciated.

Jimmy
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Old 03-17-09, 09:00 PM
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i'm just going off my head, but i'm 99% sure v-brake levers pull a lot more cable than other levers because v-brakes require it. therefore, v-brake levers should work fine for all brakes, however you need v-brake levers for v-brakes.

personally, i like the cheap "interrupter/cross" levers you can get at performance for 19.99. you can put them on any handlebars, which is nice if you decide to go back to drops.
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Old 03-18-09, 12:54 AM
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v brake levers pull more cable, but they do so with less mechanical advantage. You can set up your bike with v-brakes levers and calipers, but it would require twice as much hand power to stop.

I suggest not.

Cantilevers require the same cable pull as calipers, so try looking for cantilever brake levers.
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Old 03-18-09, 01:07 AM
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Pepper Grinder
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Originally Posted by illwafer View Post
i'm just going off my head, but i'm 99% sure v-brake levers pull a lot more cable than other levers because v-brakes require it. therefore, v-brake levers should work fine for all brakes, however you need v-brake levers for v-brakes.

personally, i like the cheap "interrupter/cross" levers you can get at performance for 19.99. you can put them on any handlebars, which is nice if you decide to go back to drops.
v-brake levers pull twice the cable at half the force. terrible idea.

the interrupter/cross levers will be fine.
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Old 03-18-09, 01:28 AM
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Avid make some variable-pull levers which worked well on a conversion i did recently.
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Old 03-18-09, 09:49 PM
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I've used these Performance levers twice with good results: http://www.performancebike.com/shop/...tegory_ID=5220

The first time was converting a road bike with shimano 105 calipers. The second was with a mixte and old Mafac centerpulls. They have a solid feel, and worked great in both cases. They have a internal cable stop for V-brakes, or calipers. And I found them for as low as $14.
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Old 03-18-09, 10:50 PM
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As other have mentioned, get levers designed for caliper or cantilever brakes (NOT V-brakes). There are some levers that are designed to work with either type (there are two possible cable-end anchor positions).

Does your road bike have multiple gears? What are your current shifters? If they are bar-mounted (like STIs or bar-ends). You'll need new shifters.

If you use flat-bar mounted shifters, you may need a Shimano flat-bar road front deraillaur, which uses the same cable-pull ratio as MTB flat-bar front shifter, but allows the use of a chainring up to 52 or 53 teeth (whereas most MTB front derailleurs are designed for up to 44 or 48T max).

Last edited by JiveTurkey; 03-18-09 at 10:54 PM. Reason: fixed flat bar road FD info
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Old 03-20-09, 08:43 AM
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Thanks for all the replys. The bike is a single speed so I don't have to worry about shifters. It seems I may have run into another problem. All the levers i've found are for a 7/8" handlebar, the bar I bought is 1". Will the lever clamps compensate for the difference? I'm not looking for high end levers, just some levers that work good and are some what affordable.

Thanks,

Jimmy
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Old 03-20-09, 10:46 AM
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I just did the opposite of what you want to do. I bought a used bike where the original owner took off the Ultegra brifters and put on a flat bar with thumbshifters and canti levers. It was 9 speed so it worked fine, but 10 speed... not so sure.
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Old 03-20-09, 06:09 PM
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Originally Posted by jpd73 View Post
Thanks for all the replys. The bike is a single speed so I don't have to worry about shifters. It seems I may have run into another problem. All the levers i've found are for a 7/8" handlebar, the bar I bought is 1". Will the lever clamps compensate for the difference? I'm not looking for high end levers, just some levers that work good and are some what affordable.

Thanks,

Jimmy
Is the bar really 1"=25.4mm? Generally the two sizes are 7/8" as you mentioned and 15/16 = 23.8mm OD. Most run 25.4 or 1 inch clamps however unless they are a road bar which is sometimes 26.0mm.
Flat bar or mountain bike levers generally won't bolt up to the larger bar as the clamps are designed for a 7/8" bar.
Hope that helps..
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Old 03-20-09, 08:00 PM
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There are generally two diameters on a given bar: where the stem clamps it and everywhere else.

The 1" bar likely refers to its stem clamp diameter. The rest (like where the brake levers attach) is going to be 7/8".
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Old 03-21-09, 07:22 AM
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Originally Posted by Pepper Grinder View Post
v-brake levers pull twice the cable ...
No, v-brake cable pull is "only" about 30% more than canti brake cable pull.

Originally Posted by Pepper Grinder View Post
... at half the force.
Force? Well, that depends on what you're putting in there. There IS a difference in mechanical advantage of course but the influence of that is far smaller than the range of the normal human adjustability.
Anyone who's capable of riding in the rain, or on bikes with stainless steel rims (and rim brakes) is (or should be) well capable of riding with mismatched brakes/levers.

(Assuming, of course, that there aren't any mechanical limitations like levers bottoming out or so)
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