Hi Wes, The parallel push XTR's are tight given the wide rim/post spacing. I would have your mechanic try a "modern" Deore or DXR V-brake, space the pads for max room as all have mentioned above and keep your housing/levers etc as is before investing in cantis... -Ben
On Thursday, October 17, 2024 at 8:33:39 AM UTC-4 Garth wrote: > > Given the parameters given by Wes, simply getting a current V-brake like a > Deore version would be easiest, as they are made with wider rims in mind. > XTR's were designed when mtb rims and spacing was more narrow than what > came along later. > > Given the mechanic is competent and by the photo given, the pads appear > already as close as they are going to go, and 1 or 2mm wouldn't make a > difference anyways as the problem is the basic geometry of the brakes > themselves. The arms are straight, whereas the Deore for example, the arms > are curved so the pad fits close to the rim yet the arms won't interfere > with the tire. If Wes isn't the one working on the bike as appears the > case, that's where my suggestion of another V-brake like a Deore rests as > it would appear to be most simple and direct. The mechanic may or may not > be competent with cantilevers as they come in many varieties that require > different skills per given brake. Myself I can't help but praise to this > day the very first canti I ever used and saw on my then new '83 > Stumpjumper, and still use today on the Bombadil, the Shimano BR-MC70. > These are commonly sold on ebay and various used parts outlets in various > conditions for usually reasonable prices. Do inspect photos closely, and > don't overpay for them. I know nothing of Paul brakes as I've never had > issues with power on any canti I've used. > On Thursday, October 17, 2024 at 1:05:41 AM UTC-4 iamkeith wrote: > >> [image: 3226502305_677100d817.jpg] >> >> On Wednesday, October 16, 2024 at 11:04:16 PM UTC-6 iamkeith wrote: >> >>> Repeating what others have already said: make sure you're taken >>> advantage of the full range of adjustment available from shifting spacers >>> and spherical washers, first. The attached diagram from Kool Stop is >>> informative. >>> >>> If you do decide to switch to cantis, one thing to know is that the >>> shape of Paul neo retros actually does not work that well with unusually >>> wide rims. ( Or unusually narrow boss spacing - which is an approximate >>> standard that's increased over the years.) Compare the neo retro to the Dia >>> Compe 980, which is similar. If you draw an imaginary line through the >>> center of the pivot, where it bolts to the boss, and parallel to the face >>> of the arm where the pads attach, and then measure the perpendicular >>> distance between those two lines, you'll see what I mean. The pad mounting >>> face on the Paul brakes is offset toward the rim pretty substanially. >>> >>> -- 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 view this discussion on the web visit https://groups.google.com/d/msgid/rbw-owners-bunch/41058fa2-8048-40c3-8c32-a598a40d7d68n%40googlegroups.com.
