Hugh: I've converted a couple of '80s Japanese 27 inch bikes to 650B (Nishiki Century mixte here http://www.flickr.com/photos/37542512@N04/7161292749/in/set-72157627582881347 , Fuji Espree here http://www.flickr.com/photos/37542512@N04/5053260214/in/set-72157624973250063/ ). The conversion made both bikes much more comfortable, and I think they look great.
I used the Dia Compe Model 750 brakes that Riv sells to convert the Fuji; there was still a bit of room in the slots, as they're very long reach brakes. They stop well, nevertheless. On the mixte, I built a wheelset with Sturmey Archer drum brake hubs (on list member Bobby Birmingham's recommendation). They are really nice, stop beautifully, and look appropriate with an older frame , so are good candidates for conversions. The 3 speed rear is even spaced for old frames - 118 mm, if I remember right. I liked the result of this one so much that I'm working on another one for a charity auction, using another '80s mixte frame (a Fuji) and exactly the same wheelset. Tom From: [email protected] [mailto:[email protected]] On Behalf Of Nick Payne Sent: Monday, March 25, 2013 9:58 PM To: [email protected] Subject: Re: [RBW] Question 27" wheel conversion to 700c wheels and maybe to 650b On 26/03/13 12:18, hsmitham wrote: Hey Folks, First can a bike with 27" wheels (630mm) be converted to 700c ( 622mm) essentially 8mm difference smaller wheel diameter. What would be the best Canti breaks to use? And can a 27" wheel be converted to a 650B? There is a 46mm difference between 27" to 650B which seems too large a jump down for such a conversion. In advance thank you for any advice. If you have modern cantilevers with an adjustment slot for the pad position, converting from 27" to 700c should be pretty easy, provided there is 4mm of adjustment available in the slot. The difference between 27" and 650b is 23mm, not 46mm (it's the difference in radius that has to be adjusted for). If you want to continue using cantilevers, you'll have to get a framebuilder to move the studs. Or alternatively, you could get another fork designed for the 650b wheel, and use a rear disk brake with a Brake Therapy unit that mounts off the existing cantilever stud (see http://2btherapy.com/bikes/brake-therapy-conversion-kit). That way you can still convert back to 27"/700c by putting back the original fork and reverting to cantilever brakes. -- 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 [email protected]<mailto:[email protected]>. To post to this group, send email to [email protected]<mailto:[email protected]>. Visit this group at http://groups.google.com/group/rbw-owners-bunch?hl=en-US. For more options, visit https://groups.google.com/groups/opt_out. ------------------------------------------------------------------------------ **************************************************** To ensure compliance with Treasury Department regulations, we advise you that, unless otherwise expressly indicated, any federal tax advice contained in this message was not intended or written to be used, and cannot be used, for the purpose of (i) avoiding tax-related penalties under the Internal Revenue Code or applicable state or local tax law provisions or (ii) promoting, marketing or recommending to another party any tax-related matters addressed herein. **************************************************** **************************************************** This email (and any attachments thereto) is intended only for use by the addressee(s) named herein and may contain legally privileged and/or confidential information. If you are not the intended recipient of this email, you are hereby notified that any dissemination, distribution or copying of this email (and any attachments thereto) is strictly prohibited. If you receive this email in error please immediately notify me at (212) 735-3000 and permanently delete the original email (and any copy of any email) and any printout thereof. Further information about the firm, a list of the Partners and their professional qualifications will be provided upon request. **************************************************** ============================================================================== -- 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 [email protected]. To post to this group, send email to [email protected]. Visit this group at http://groups.google.com/group/rbw-owners-bunch?hl=en-US. For more options, visit https://groups.google.com/groups/opt_out.
