No respacing needed. The Sturmey-Archer hub starts at 115mm and goes up to 135-just add more locknuts. It fits perfectly in the QB's 120mm fork ends.
--Eric campyonly...@me.com www.campyonly.com www.wheelsnorth.org On Oct 3, 2009, at 8:35 PM, Kelly wrote: > > Very cool! I have been considering doing this too. Did you have to > re-space the rear dropouts? > > On Oct 3, 5:45 pm, Eric Norris <campyonly...@me.com> wrote: >> Just completed updating my Quickbeam with an 8-speed Sturmey-Archer >> hub. Photos are here: >> http://www.flickr.com/photos/35176...@n03/sets/72157622384321375/ >> >> You'll see that I used a J-Tek bar-end shifter in place of the >> standard gripshifter that comes with the hub. It works perfectly, >> and >> makes for a much cleaner installation, IMHO. >> >> Thanks to Jim at Hiawatha Cyclery, who sold me the hub and shifter. >> He even included in the inline barrel adjuster that sits just >> upstream >> of the hub (something I wouldn't have thought of). >> >> I have the chain running on 32T inner ring on the QB's crankset. The >> chainline is much straighter than on the 40T large ring, and the >> range >> of gears is better (for me). The hub's lowest gear is direct drive-- >> with the stock 25T cog, that gives me about 34 gear inches. Gears >> 2-8 >> multiply the low gear--top end is 104 gear inches. (By comparison, >> low/high on the 40T ring would be 43/131. The top gear there would >> really be necessary only on downhills of 30mph or more; I prefer a >> more usable range and a lower low gear.) >> >> Gear calcs from Sheldon Brown's online calculator >> (http://sheldonbrown.com/gears/internal.html >> ): >> For 700 X 28 / 28-622 tire with 170 mm cranks and 25 tooth sprocket >> >> 40 / 25 25.0 % 32 / 25 >> 3.05 130.6 104.5 >> 28.2 % >> 2.38 101.9 81.5 >> 13.3 % >> 2.1 89.9 71.9 >> 12.9 % >> 1.86 79.6 63.7 >> 13.4 % >> 1.64 70.2 56.2 >> 13.1 % >> 1.45 62.1 49.7 >> 13.3 % >> 1.28 54.8 43.8 >> 28.0 % >> 1 42.8 34.3 >> >> Pros (so far): >> >> --Simple and easy to shift >> --Impervious to weather >> --Singlespeed chains are cheap and easy to replace >> --Legendary Sturmey-Archer reliability >> --Good range of gears >> --Makes cool ticking noises that change depending on what gear you're >> in. >> >> Cons (so far): >> >> --Heavy. Hub alone is 4 pounds. Built wheel is close to five. >> --Impossible to fix on the road if something goes wrong inside the >> hub. >> >> I'm interested in any other experiences that members of this list >> have >> with Sturmey-Archer hubs. >> >> --Ericwww.wheelsnorth.orgwww.campyonly.com > > --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "RBW Owners Bunch" group. To post to this group, send email to rbw-owners-bunch@googlegroups.com To unsubscribe from this group, send email to rbw-owners-bunch+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/rbw-owners-bunch?hl=en -~----------~----~----~----~------~----~------~--~---
