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Old 08-25-11, 01:59 PM   #1
simonplatt
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trek 7300 rear brake

anyone know what rear brake will fit my trek frame?

the rear stays and bridge are all threaded
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Old 08-25-11, 02:46 PM   #2
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Are there no canti/V-brake posts on the other side of the stay? I'd assume that the bike came with one of these types (canti if older, V-brake if newer).
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Old 08-25-11, 04:29 PM   #3
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What model year is it?, would check this against the Trek website / Bikepedia to see what it came with originally. What brake levers does it have would also be a clue to what brakes it needs.
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Old 08-26-11, 09:48 AM   #4
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there are posts on front fork (no suspension) but not rear. i got this as frame only, not a complete bike, and it was completely bare apart from bearings in headstock.
i am having difficulty finding the year of it. it is a 7300 trekking.
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Old 08-26-11, 09:55 AM   #5
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If the stays are threaded on their rear side, they must have come with cantilever or V-brake mounting studs which have been removed. The threads in the brake bridge are probably for a fender mounting bracket but you could use a sidepull brake if you can find one with the required reach. You might have to drill the bridge out to clear a 6 mm mounting bolt.
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Old 08-26-11, 01:40 PM   #6
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The threaded fittings shown on the seatstays in your photo are for a ring lock, more commonly seen in Europe. Reinstall the cantilever studs if they're not present, and use some V-brakes or cantilevers.
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Old 08-26-11, 02:31 PM   #7
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If the stays are threaded on their rear side, they must have come with cantilever or V-brake mounting studs which have been removed. The threads in the brake bridge are probably for a fender mounting bracket but you could use a sidepull brake if you can find one with the required reach. You might have to drill the bridge out to clear a 6 mm mounting bolt.
stays are threaded on front side, nothing on rear, the bridge is to high for the reach of any brakes i have, i am considering making an alum bracket to suit.
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Old 08-26-11, 02:50 PM   #8
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The threaded fittings shown on the seatstays in your photo are for a ring lock, more commonly seen in Europe. Reinstall the cantilever studs if they're not present, and use some V-brakes or cantilevers.
thanks that explains them there is nothing on the rear to mount posts.

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Old 08-26-11, 04:49 PM   #9
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Go with a drum brake...
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Old 08-26-11, 04:59 PM   #10
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I'm curious to see more pics of this bike's rear triangle.

I don't see any signs of a rear derailer cable in the pic so if that routing has been the same as the American spec 7300 then that makes it a 2011.

I wonder what they did for rear derailer cable routing for the Euro spec models on previous years, assuming they had a lock mount bosses.
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Old 08-26-11, 05:08 PM   #11
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You can get sidepulls with quite long reach intended fo BMX and similar bikes. Dia Compe and Tektro make calipers with reaches over 80 mm. Jenson carries several different models:
http://www.jensonusa.com/store/sub/1...rakes+Bmx.aspx

Alternatives are a drum or coaster brake.
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Old 08-27-11, 11:16 AM   #12
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I'm curious to see more pics of this bike's rear triangle.

I don't see any signs of a rear derailer cable in the pic so if that routing has been the same as the American spec 7300 then that makes it a 2011.

I wonder what they did for rear derailer cable routing for the Euro spec models on previous years, assuming they had a lock mount bosses.
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Old 08-27-11, 11:21 AM   #13
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there are 3 cable guides under the d/t. i presume 1 = front mech. 1 = rear mech. 1 = ?

note the lugs one forward of b/b one on chainstay.
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Old 08-27-11, 11:51 AM   #14
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I looked up the 7300 on Trek's web site and they came with Tektro's version of V-brakes at both ends and the illustration shows mounting studs for them on the seatstays.
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