Re: [RBW] Re: Seat post clamp bolt snapped
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 or something. It was way more simple than I thought. Thankfully ;) Interesting thought on the tightening (or lack of). Now that I was able to get a replacement nut and bolt in there I'll monitor it and if there is any more slippage, if so I'll bring it to riv to apply some knurling on the seat post to add some friction and keep it from sliding. On Mon, Oct 13, 2014 at 10:30 AM, Hunter Harr crazydogfa...@gmail.com wrote: 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 come in from the other side. My bet is the stainless steel gauled and you were never actually tightening the seat post as much as you though, so maybe no undersized seat post or oversize seat tube, bad bolt and nut. If bolt sheared off coming out, drilling and extractor are not going to do the job. If there is some of the head still there, not letting it pouch through, drill on the bolt with just oversize bit until you just kiss the frame, then it should pouch out. Hunter -- You received this message because you are subscribed to a topic in the Google Groups RBW Owners Bunch group. To unsubscribe from this topic, visit https://groups.google.com/d/topic/rbw-owners-bunch/TvKHFIdcNzY/unsubscribe . To unsubscribe from this group and all its topics, send an email to rbw-owners-bunch+unsubscr...@googlegroups.com. To post to this group, send email to rbw-owners-bunch@googlegroups.com. Visit this group at http://groups.google.com/group/rbw-owners-bunch. For more options, visit https://groups.google.com/d/optout. -- You received this message because you are subscribed to the Google Groups RBW Owners Bunch group. To unsubscribe from this group and stop receiving emails from it, send an email to rbw-owners-bunch+unsubscr...@googlegroups.com. To post to this group, send email to rbw-owners-bunch@googlegroups.com. Visit this group at http://groups.google.com/group/rbw-owners-bunch. For more options, visit https://groups.google.com/d/optout.
Re: [RBW] Re: Seat post clamp bolt snapped
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 davecst...@gmail.com wrote: 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 or something. It was way more simple than I thought. Thankfully ;) Interesting thought on the tightening (or lack of). Now that I was able to get a replacement nut and bolt in there I'll monitor it and if there is any more slippage, if so I'll bring it to riv to apply some knurling on the seat post to add some friction and keep it from sliding. On Mon, Oct 13, 2014 at 10:30 AM, Hunter Harr crazydogfa...@gmail.com wrote: 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 come in from the other side. My bet is the stainless steel gauled and you were never actually tightening the seat post as much as you though, so maybe no undersized seat post or oversize seat tube, bad bolt and nut. If bolt sheared off coming out, drilling and extractor are not going to do the job. If there is some of the head still there, not letting it pouch through, drill on the bolt with just oversize bit until you just kiss the frame, then it should pouch out. Hunter -- You received this message because you are subscribed to a topic in the Google Groups RBW Owners Bunch group. To unsubscribe from this topic, visit https://groups.google.com/d/topic/rbw-owners-bunch/TvKHFIdcNzY/unsubscribe . To unsubscribe from this group and all its topics, send an email to rbw-owners-bunch+unsubscr...@googlegroups.com. To post to this group, send email to rbw-owners-bunch@googlegroups.com. Visit this group at http://groups.google.com/group/rbw-owners-bunch. For more options, visit https://groups.google.com/d/optout. -- You received this message because you are subscribed to the Google Groups RBW Owners Bunch group. To unsubscribe from this group and stop receiving emails from it, send an email to rbw-owners-bunch+unsubscr...@googlegroups.com. To post to this group, send email to rbw-owners-bunch@googlegroups.com. Visit this group at http://groups.google.com/group/rbw-owners-bunch. For more options, visit https://groups.google.com/d/optout. -- You received this message because you are subscribed to the Google Groups RBW Owners Bunch group. To unsubscribe from this group and stop receiving emails from it, send an email to rbw-owners-bunch+unsubscr...@googlegroups.com. To post to this group, send email to rbw-owners-bunch@googlegroups.com. Visit this group at http://groups.google.com/group/rbw-owners-bunch. For more options, visit https://groups.google.com/d/optout.
Re: [RBW] Re: Seat post clamp bolt snapped
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 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 davecst...@gmail.com wrote: 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 or something. It was way more simple than I thought. Thankfully ;) Interesting thought on the tightening (or lack of). Now that I was able to get a replacement nut and bolt in there I'll monitor it and if there is any more slippage, if so I'll bring it to riv to apply some knurling on the seat post to add some friction and keep it from sliding. On Mon, Oct 13, 2014 at 10:30 AM, Hunter Harr crazydogfa...@gmail.com wrote: 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 come in from the other side. My bet is the stainless steel gauled and you were never actually tightening the seat post as much as you though, so maybe no undersized seat post or oversize seat tube, bad bolt and nut. If bolt sheared off coming out, drilling and extractor are not going to do the job. If there is some of the head still there, not letting it pouch through, drill on the bolt with just oversize bit until you just kiss the frame, then it should pouch out. Hunter -- You received this message because you are subscribed to a topic in the Google Groups RBW Owners Bunch group. To unsubscribe from this topic, visit https://groups.google.com/d/topic/rbw-owners-bunch/TvKHFIdcNzY/unsubscribe . To unsubscribe from this group and all its topics, send an email to rbw-owners-bunch+unsubscr...@googlegroups.com. To post to this group, send email to rbw-owners-bunch@googlegroups.com. Visit this group at http://groups.google.com/group/rbw-owners-bunch. For more options, visit https://groups.google.com/d/optout. -- You received this message because you are subscribed to the Google Groups RBW Owners Bunch group. To unsubscribe from this group and stop receiving emails from it, send an email to rbw-owners-bunch+unsubscr...@googlegroups.com. To post to this group, send email to rbw-owners-bunch@googlegroups.com. Visit this group at http://groups.google.com/group/rbw-owners-bunch. For more options, visit https://groups.google.com/d/optout. -- You received this message because you are subscribed to a topic in the Google Groups RBW Owners Bunch group. To unsubscribe from this topic, visit https://groups.google.com/d/topic/rbw-owners-bunch/TvKHFIdcNzY/unsubscribe . To unsubscribe from this group and all its topics, send an email to rbw-owners-bunch+unsubscr...@googlegroups.com. To post to this group, send email to rbw-owners-bunch@googlegroups.com. Visit this group at http://groups.google.com/group/rbw-owners-bunch. For more options, visit https://groups.google.com/d/optout. -- You received this message because you are subscribed to the Google Groups RBW Owners Bunch group. To unsubscribe from this group and stop receiving emails from it, send an email to rbw-owners-bunch+unsubscr...@googlegroups.com. To post to this group, send email to rbw-owners-bunch@googlegroups.com. Visit this group at http://groups.google.com/group/rbw-owners-bunch. For more options, visit https://groups.google.com/d/optout.
Re: [RBW] Re: Seat post clamp bolt snapped
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 have snapped at least one sp clamp bolt (I think it was a Campy). If your seatpost is right, and the seat tube and lug is right, it really takes little torque to hold the sp in place -- as I only belatedly discovered and even more belatedly admitted. IME, which is not inconsiderable, it is usually cheap frames and seatposts that tend to slip, though not always -- my Syncros, mentioned earlier, was certainly not cheap. On Tue, Oct 14, 2014 at 12:45 PM, 'Chris Lampe 2' via RBW Owners Bunch rbw-owners-bunch@googlegroups.com wrote: 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 stem. After the third time I bought one of those 5nM torque wrenches for the smaller bolts. -- You received this message because you are subscribed to the Google Groups RBW Owners Bunch group. To unsubscribe from this group and stop receiving emails from it, send an email to rbw-owners-bunch+unsubscr...@googlegroups.com. To post to this group, send email to rbw-owners-bunch@googlegroups.com. Visit this group at http://groups.google.com/group/rbw-owners-bunch. For more options, visit https://groups.google.com/d/optout.
Re: [RBW] Re: Seat post clamp bolt snapped
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 received this message because you are subscribed to the Google Groups RBW Owners Bunch group. To unsubscribe from this group and stop receiving emails from it, send an email to rbw-owners-bunch+unsubscr...@googlegroups.com. To post to this group, send email to rbw-owners-bunch@googlegroups.com. Visit this group at http://groups.google.com/group/rbw-owners-bunch. For more options, visit https://groups.google.com/d/optout.
Re: [RBW] Re: Seat post clamp bolt snapped
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 campyonlyguy.blogspot.com On Oct 13, 2014, at 2:38 PM, Tom Harrop twhar...@gmail.com wrote: 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 is undersized (or the clamp is deformed), which causes the bolt to bend as you try to tighten it. Anyway, each time I've managed to solve the problem by going up a seatpost size, even if it means ignoring the manufacturer's recommended size. One time the required size didn't seem to exist, so I used a wrap of 0.2 mm thick steel shim, which also worked. In my hands, none of the other commonly suggested methods (like beer can shim, abrasive rub etc.) have ever helped... but it could just be a question of weight. Good luck, and let us know how you end up fixing it. -- You received this message because you are subscribed to the Google Groups RBW Owners Bunch group. To unsubscribe from this group and stop receiving emails from it, send an email to rbw-owners-bunch+unsubscr...@googlegroups.com. To post to this group, send email to rbw-owners-bunch@googlegroups.com. Visit this group at http://groups.google.com/group/rbw-owners-bunch. For more options, visit https://groups.google.com/d/optout. -- You received this message because you are subscribed to the Google Groups RBW Owners Bunch group. To unsubscribe from this group and stop receiving emails from it, send an email to rbw-owners-bunch+unsubscr...@googlegroups.com. To post to this group, send email to rbw-owners-bunch@googlegroups.com. Visit this group at http://groups.google.com/group/rbw-owners-bunch. For more options, visit https://groups.google.com/d/optout.
Re: [RBW] Re: Seat post clamp bolt snapped
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 pen or similar. The broken bolt will pop out with a nylock nut connected to it. On Monday, October 13, 2014 2:43:17 PM UTC-7, DS wrote: 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 received this message because you are subscribed to the Google Groups RBW Owners Bunch group. To unsubscribe from this group and stop receiving emails from it, send an email to rbw-owners-bunch+unsubscr...@googlegroups.com. To post to this group, send email to rbw-owners-bunch@googlegroups.com. Visit this group at http://groups.google.com/group/rbw-owners-bunch. For more options, visit https://groups.google.com/d/optout.
