[RBW] Re: Seat post clamp bolt snapped

2014-10-20 Thread cyclotour...@gmail.com
Slight thread hijack, but is there a security bolt system that works well with the recessed bolt/nut that fit Rivendells? Something like this: http://www.bicyclebolts.com/products/torx-security-seatpost-binder-bolt On Monday, October 13, 2014 8:47:14 AM UTC-7, DS wrote: I emailed brian @ riv

[RBW] Re: Seat post clamp bolt snapped

2014-10-20 Thread Shoji Takahashi
Security bolt system for Rivs: you can use the M6 x22 security bolts (allen or torx). like the ones here: http://www.bicyclebolts.com/collections/security-allen-bolts On Monday, October 20, 2014 2:49:36 PM UTC-4, cyclot...@gmail.com wrote: Slight thread hijack, but is there a security bolt

[RBW] Re: Seat post clamp bolt snapped

2014-10-20 Thread cyclotour...@gmail.com
That's perfect, thank you! Very reasonable shipping if you go Parcel Post as well! On Monday, October 20, 2014 12:18:32 PM UTC-7, Shoji Takahashi wrote: Security bolt system for Rivs: you can use the M6 x22 security bolts (allen or torx). like the ones here:

[RBW] Re: Seat post clamp bolt snapped

2014-10-17 Thread Johan Larsson
It could very well be that the threads on the seat post bolt were damaged and that they had galled(?) in the nut so you couldn't tighten it properly. That would explain that the bolt broke when you were releasing it and normally very little force is needed. If this is the case you only need a

[RBW] Re: Seat post clamp bolt snapped

2014-10-15 Thread Hunter Harr
Pictures would help. But if I understand what I read right, Head broke off bolt so what is left in the frame is post and locknut, so should just punch out and get a replacement bolt and nut. The seat clamp part that is part of the frame on Rivs is not threaded, one size captures a nut then bolt

Re: [RBW] Re: Seat post clamp bolt snapped

2014-10-15 Thread David Stein
Hunter - You are correct. Problem 2 has been solved by a simple tap out of the nut and bolt per previous suggestions. I did not realize it was just a bolt on the other side, I was under the impression there was some threads in the housing and the bolt would have to be extracted by drilling a hole

Re: [RBW] Re: Seat post clamp bolt snapped

2014-10-15 Thread Joe Bunik
Just a thought, Dave - but are you using a hanger-stop (eg Nitto) that attaches to the seatpost bolt? And, if so- was it perhaps getting lodged between the ears of the lug-slot and causing less-than-100% clampage? Something to watch out for! =- Joe Bunik Walnut Creek, CA On 10/15/14, David Stein

Re: [RBW] Re: Seat post clamp bolt snapped

2014-10-15 Thread David Stein
Do you mean the hanger stop for the brakes? Yes, but it was pretty well centered, though I may not understand what you're asking. On Wed, Oct 15, 2014 at 12:43 PM, Joe Bunik jbu...@gmail.com wrote: Just a thought, Dave - but are you using a hanger-stop (eg Nitto) that attaches to the seatpost

[RBW] Re: Seat post clamp bolt snapped

2014-10-14 Thread 'Chris Lampe 2' via RBW Owners Bunch
Every time I see a bike with a built-in seat post clamp I cringe a little bit. I've never been mechanically inclined and just started learning to work on my own bikes less than two years ago. My only mishaps were breaking the bolt in one of my Ergon grips (twice!!) and breaking the bolt in a

[RBW] Re: Seat post clamp bolt snapped

2014-10-14 Thread Ron Mc
while I'm guessing you're probably bored with my old Raleigh, it has the best-functioning seatpost clamp I've ever monkeyed with. Tightening the bolt is not what clamps the seatpost - it's the tension of the lug itself. You take a big-blade screwdriver and spread the clamp - you can slide the

Re: [RBW] Re: Seat post clamp bolt snapped

2014-10-14 Thread Patrick Moore
But integrated clamps are so much prettier! I cringe whenever I see a separate clamp. A bit more seriously, I myself tend to overtighten, less from being hamfisted than from being impatient and anxious, and I've bent more than one integrated clamp (fixed as Ron says with large screwdriver), and I

[RBW] Re: Seat post clamp bolt snapped

2014-10-13 Thread Jon in the foothills of Central Colorado
My seat post slipped also on my Hillborne. Part of the frame prep at any bike shop is to take an abrasive round brush and smooth out the inside of the seat tube where the seat stays and top tube have been welded to prevent scratching the seat post.I measured my seat post and it was right on at

[RBW] Re: Seat post clamp bolt snapped

2014-10-13 Thread Tom Harrop
I know the feeling because I've had seatpost slippage on several bikes (I'm 100 kg +). The first time I ran into it, I also incrementally cranked the bolt down tighter and tighter (without helping the slipping) until it snapped. With that in mind, I guess if the bolt snaps it means the seatpost

Re: [RBW] Re: Seat post clamp bolt snapped

2014-10-13 Thread David Stein
Thanks! Glad to know I'm not the only one! I almost never am hence why I asked. Brian @ riv said I could bring in the seatpost and he would apply some knurling to it, I had to look that up, will help with slipping. Now I just need to work on tapping out the bolt and getting a new one. -- You

Re: [RBW] Re: Seat post clamp bolt snapped

2014-10-13 Thread Eric Norris
Campagnolo's seat post bolts were notorious for breaking--I've snapped several. When I went to PBP, I took a spare ... and ended up using it when I snapped mine in France while making a small adjustment in seat height. --Eric Norris campyonly...@me.com www.campyonly.com

Re: [RBW] Re: Seat post clamp bolt snapped

2014-10-13 Thread Bill Lindsay
Regarding tapping the bolt out. You should be able to shove it out with a ballpoint pen. If you have a cable hanger hanging from the bolt to your rear brake, then disconnect the cable down at the brakes. With slack in the system there, literally you should be able to just shove it out with a