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The tradition of me breaking stuff continues this. Brooks C-17 seat rail

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The tradition of me breaking stuff continues this. Brooks C-17 seat rail

Old 11-13-22, 06:57 PM
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Toadmeister
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The tradition of me breaking stuff continues this. Brooks C-19 seat rail

Felt a good crack and than the seat wobble. Dang I broke the seat clamp bolts a couple months back too (Kinekt suspension post).

6í4Ē 275# isnít gentle on seats and posts.

Time for a new seat! what to get? I like Brooks and have 2 more leather ones in other bikes. But are there seats with stronger seat rails? Brooks should be steel but I donít know what grade and strength.



Last edited by Toadmeister; 11-13-22 at 07:05 PM.
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Old 11-14-22, 07:31 AM
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New rails can be had, check Ebay.
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Old 11-14-22, 05:43 PM
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I am 50-75# heavier than you and use the C-17 saddles on my bikes. I seem to get 3-4 seasons out of them before this happens.

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Old 11-14-22, 06:25 PM
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Originally Posted by bwilli88 View Post
New rails can be had, check Ebay.
thanks for the tip!
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Old 11-14-22, 09:33 PM
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Originally Posted by DWhitworth View Post
I am 50-75# heavier than you and use the C-17 saddles on my bikes. I seem to get 3-4 seasons out of them before this happens.

DaveW
Update, I ordered 2 sets of replacement rails!
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Old 11-15-22, 05:50 PM
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Originally Posted by Toadmeister View Post
Update, I ordered 2 sets of replacement rails!
Where did you get them?

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Old 11-15-22, 06:44 PM
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Originally Posted by DWhitworth View Post
Where did you get them?

DaveW
I ordered direct from Brooks in England
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Old 11-15-22, 07:13 PM
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i wonder if your seatpost clamp has a little high spot that is causing a stress point?
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Old 12-03-22, 08:40 AM
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It looks like improper heat treatment to me, based on what I see of grain structure in that break. It would be an interesting test to see how far a replacement rail would bend before breaking.
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Old 12-03-22, 08:47 AM
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Originally Posted by RH Clark View Post
It looks like improper heat treatment to me, based on what I see of grain structure in that break. It would be an interesting test to see how far a replacement rail would bend before breaking.
My workplace has a materials lab where we could actually analyze this. The Engineer I knew retired around COVID However. Not sure who his replacement is now.
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Old 12-04-22, 10:58 AM
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Originally Posted by Toadmeister View Post
My workplace has a materials lab where we could actually analyze this. The Engineer I knew retired around COVID However. Not sure who his replacement is now.
I would also examine that base to make sure it isn't causing uneven pressure or damage at the edge when tightened down. I don't think that rail should have broken unless it's defective or the OP is actually bending the rail slightly back and forth when shifting weight around on the seat. I don't think that would happen unless the base is exerting uneven pressure.

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Old 12-04-22, 01:52 PM
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I'm a bit heavier than you, and I've yet to break something on a Brooks. Also, using a suspension seatpost would, I'd think, soak up a lot of the stress of your weight on the saddle. I'm guessing it was just a defective rail.
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Old 12-13-22, 12:51 PM
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I broke the rail on a B17 when I was 5 miles from home. Not a fun ride back and I was sore for days. It was over 30 years old so it was probably due to fail, but thanks for the reminder. I may try to fix it myself this winter.
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Old 12-14-22, 10:20 AM
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This happened to me with my B66. I replaced the rails but I was never able to get the tension right again. Good luck with yours.
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