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Old 12-10-04, 03:32 AM   #1
nbf
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Short brakes

Hi I have an old cinelli steel frame with 105 brakes I have inherited for winterbike use. The wheels are CXP33 rims on ultegra hubs. The brakepads are BBB. My problem is that the brakecalliper arms seem to short! The brakepads are positioned so that 1/4 of them are of the top of the brake surface, despite the pads being aet in the lowest position. is this a problem related to the frame, or can the brakes/pads in some way be adjusted to comply with this.
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Old 12-10-04, 04:49 AM   #2
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Quote:
Originally Posted by nbf
Hi I have an old cinelli steel frame with 105 brakes I have inherited for winterbike use. The wheels are CXP33 rims on ultegra hubs. The brakepads are BBB. My problem is that the brakecalliper arms seem to short! The brakepads are positioned so that 1/4 of them are of the top of the brake surface, despite the pads being aet in the lowest position. is this a problem related to the frame, or can the brakes/pads in some way be adjusted to comply with this.
You need to find some longer reach brakes. If you try to ride the way it is, your brake pads are going to blow out your tire sidewall every time you try to stop. Use a t-square or something to measure the vertical distance (in millimeters) from your brake mounting hole to the middle of your rim's brake surface. Be sure to measure both front and back because they are rarely the same.
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Old 12-10-04, 05:37 AM   #3
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Does the brakes come with different size reaches? That is can I find substitute brakearms, or should I find a different brakebarnd alltogehther?
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Old 12-10-04, 06:41 AM   #4
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Originally Posted by nbf
Does the brakes come with different size reaches? That is can I find substitute brakearms, or should I find a different brakebarnd alltogehther?
yes. look at www.sheldonbrown.com.

I think its odd that you're having this trouble with a cinelli, usually it happens with older, cheap british and american frames, from putting 700C wheels in a frame designed for a 27" wheel. the rim diam is of a 700 is 622, and the rim diameter of a 27" is 630 mm. hence your problem.
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Old 12-10-04, 07:19 AM   #5
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Thanks a lot for the help. The frame is 12-13 years old, have been standing in a basement for 10 years, which propably is the problem. its nice to now that it wasnt necessarily me that had bungled the setup! The big question now is: new frame or new brakes??? Ill propably have to ask santa.
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Old 12-10-04, 07:27 AM   #6
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Shimano do a series of dual pivot caliper brakes in the long drop size. These are very efficient stoppers and good value. I use them on my winter bike.
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Old 12-10-04, 08:01 AM   #7
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Is the problem in both the front in rear?
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Old 12-10-04, 08:45 AM   #8
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Originally Posted by nbf
Thanks a lot for the help. The frame is 12-13 years old, have been standing in a basement for 10 years, which propably is the problem.
No, standing in the basement did not cause the problem.
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Old 12-10-04, 08:47 AM   #9
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Quote:
Originally Posted by Phatman
yes. look at www.sheldonbrown.com.

I think its odd that you're having this trouble with a cinelli, usually it happens with older, cheap british and american frames, from putting 700C wheels in a frame designed for a 27" wheel. the rim diam is of a 700 is 622, and the rim diameter of a 27" is 630 mm. hence your problem.
Well, actually the frame could have been designed around standard reach calipers and someone substituted short reaches.I've seen it before. Could have absolutely nothng to do with 27" wheels.
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Old 12-10-04, 08:50 AM   #10
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another option is dropbolts.

http://sheldonbrown.com/harris/brakes.html#dropbolts
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Old 12-10-04, 09:09 AM   #11
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Them only work with specific calipers ,and there are longer reach calipers around for alot less.
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Old 12-10-04, 09:36 AM   #12
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Originally Posted by sydney
Them only work with specific calipers ,and there are longer reach calipers around for alot less.
Yup, you're correct, just posting in case he wanted to keep his current brakes and if the drop blocks would work for him.
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Old 12-10-04, 04:49 PM   #13
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Thanks for the continued interest. I have done some more research, and found out that the frame itself is not Cinelli as I thought, instead it was handbuild by a wellknown local framebuilder called Banani (danish) some 15 years ago. But Im happy to have been miscorected in my belief that cellars shrinks calliperbrakes!
Im thinking about buying a aluframe from Fort instead, since I feel that the frame wobbles a lot when Im putting power in the pedals.
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