I did a conversion on a Trek 620 a while back, the brakes couldn't make the adjustment. The REAL problem is that the brake posts are much more narrow on the 27" bikes and modern brakes are designed for the wider brakes designed after the mountain bike transition. Look more a pair of old smooth post Deore XT cantilevers, they work great.
I highly doubt they'll drop low enough for a 650b conversion though. Honestly, I'd just stick with 700c so you don't have to do a conversion, I don't see a big point in doing 650b conversions unless there is no clearance in the original frame; a bike made with 27" wheels and cantilevers is likely a touring bike and should easily swallow some 700 x 35's. Check out this blogpost for a bit more information, not me but the same bike I worked on: http://nihonmaru.blogspot.com/2011/08/phoenix-project-shimano-m732-cantilever.html After getting a quality pair of 27" wheels I regret doing the conversion. I got tired of always stretching the drop out to fit the modern wheel (I'm too lazy to coldset). I have some beautiful phil wood hubs laced to 27" Super Champion rims, tubes, and wolber tires that is looking for a new owner. The bearings are smooth as butter and they roll true. Shoot me a message if you are interested! Cheers, Chris Berkeley, CA -- 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.
