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Old 05-14-12, 07:04 PM   #1
diff
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Brake Lever Help

Hi,

I have regular road calipers. I guess the name would be "dual pivot caliper brake". Tektro R5xx. And the lever I have been using is Tektro RL5xx. Not sure of the exact model numbers, but have been using it as a stand alone front brake and has been working fine.

These new bars I have, have a 31.8 clamp diameter, so I need a new lever. There are so many levers to choose from. I see levers for linear, canti, cross, traditional pull (which seem to be all bmx 22.2 clamp anyhow). All these levers look exactly the same to me.

Are any of these levers going to work?

Looks like the lever I have is a cross lever, but I thought cross levers are designed to have a brake line coming from your hoods and then through the cross lever.

So would it be best to stick with cross levers only? Or will some of the others work also?

Which is even more confusing is this lever works with canti and linear pull.

http://www.universalcycles.com/shopp...49&category=10

This one works with canti and caliper.

http://www.universalcycles.com/shopp...80&category=10

But this one is compatible with canti + road. But not linear.

http://www.universalcycles.com/shopp...93&category=10

Yet they all look the same to me. Can anyone be so kind and tell me the actual differences between these. And once again I am just looking for a simple lever to use as a stand alone brake on a riser bar.

Thanks!
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Old 05-14-12, 07:44 PM   #2
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Why do you need a new lever if you switched to a wider clamp diameter bar? The wider diameter is only on the clamping point. That is, unless you switched from a road bar (23.8mm grip diameter) to a mountain bar (22.2mm grip diameter) or visa versa.
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Old 05-14-12, 08:14 PM   #3
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I switch from a 24.0 clamping area to a 31.8 clamping area. So will need a 31.8 clamp as the 24.0 clamp is too small to fit the 31.8 clamp area of the new bars.

Thanks.

EDIT:

I think I am confusing myself with the clamping size. The stem clamping size is 31.8. At 1st glance I thought the thickness was 31.8 across the whole bar. I think grip diameter is still the same. But these bars are weird looking. Cinelli pepper.

http://www.tokyofixedgear.com/produc...r-Bar---White/

Just going to wait for the bars to come, put the grips on, and then see what the OD is on the areas I can mount the brake lever.

Thanks.

Last edited by diff; 05-14-12 at 08:26 PM.
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Old 05-14-12, 08:15 PM   #4
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Originally Posted by diff View Post
I switch from a 24.0 clamping area to a 31.8 clamping area. So will need a 31.8 clamp as the 24.0 clamp is too small to fit the 31.8 clamp area of the new bars.

Thanks.
I wasn't aware that 24mm clamping area bars existed...


Anyway.. You don't need the lever to go on the clamping area. It can go on the thinner part of the bar.
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Old 05-14-12, 08:29 PM   #5
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Yeah, I was mixing up clamping diameter with grip diameter. The bars I have now are standard 25.4 stem clamp and 24.0 / 23.8 grip diameter. The bars I am getting have 31.8 stem clamp and 24/23.8 grip I assume.

http://twitpic.com/6a8jom

But it does look like I will be fine with my current lever as there is plenty of room next to the grips before it tapers.

They actually make brake levers in 31.8 which is what probably got my thinking all twisted.

Sorry about that.

Thanks again. Was just about to order something I probably won't need.

Last edited by diff; 05-14-12 at 08:35 PM.
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Old 05-14-12, 08:31 PM   #6
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Yeah, I was mixing up clamping diameter with grip diameter. The bars I have now are standard 25.4 stem clamp and 24.0 / 23.8 grip diameter.

Sorry about that.
I thought you had a 31.8mm bar.
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Old 05-14-12, 08:37 PM   #7
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Hehe, the new bars that are coming will be 31.8. The ones I am riding now are 25.4 . And will need t move the lever to the new bars, but thought I would need a larger brake lever clamp.

Hopefully that clears it up.
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