SF Cyclotouring

Ride reports and other ramblings from a San Francisco cyclist.



Darnit. Last December I bought an 8-speed XTR 12-32 cassette from the
iBOB list. I have a similar cassette on my 'cross bike and really
like the ratios it gives for mixter riding, so when the chance arose
to pick up a spare on the cheap, I figured "why not"? Now, I want to
use that cassette for the Trek 400 650B project, but I can't find it!
I know I definitely got the cassette because I have an old email where
I wrote the guy letting him know the package arrived. So I know it's
gotta be in my house somewhere! But I can't find it, and it's holding
up this project. ARGH!


Shimano Square-Taper BB Sizing

Posting this here as a bookmark of sorts...helpful info on selecting the right Shimano square-taper cartridge BB for your application.

From this iBOB post:

107, 113, and 118 are asymmetric. 110 & 115 are symmetrical. The increase in axle length is what you two described earlier; i.e., drive side of 110 = drive side of 107 and so on.

And from another iBOB post:

The steps are such that you can get any chainline in 1mm steps over a 12mm range without using more than the "Shimano approved" 2mm spacer under the fixed cup. In some cases, you get to choose lower Q or left-right symmetry. I'm also pretty sure that all levels of Shimano cartridge follow the same pattern. He used a cheat sheet like this that I copied (but it wouldn't hurt to double check for yourself; I haven't tried all the combinations):

chainline spindle_length right_side_spacer
+ 0 107/110.5
+ 1 107/110.5 1mm
+ 2 107/110.5 2mm
+ 3 113/115
+ 4 113/115 1mm
+ 5 118
+ 6 118 1mm
+ 7 118 2mm
+ 8 122.5
+ 9 122.5 1mm
+10 122.5 2mm
+11 127.5

See this thread for more details.


Kogswell Updated Build List

The Bike

Updated build list, mostly for my own reference...

Frame: Kogswell P/R, 59x700C (S/N: CB70W0093)
Fork: Kogswell 700C, 1-1/8 steerer, 58mm offset (expected ~42mm trail)
Rims: Mavic MA-3 - 32 spokes front, 36 spokes rear
Hubs: Shimano XT rear, SON28 front
Spokes: Wheelsmith 14/15g, Phil 14/15g front
Tires: 700x32 Panaracer Pasela
Pedals: Shimano SPD PD-M515
Crank: Shimano Exage FC-M520B, 175mm/24-36-46
Chain: Sram PC971
Cassette: Shimano 9spd 11x32
BB: Shimano UN-52 68x113mm
Front Derailleur: Shimano DX
Rear Derailleur: Shimano Deore 9spd
Shifters: Shimano Dura-Ace down-tube 9spd
Handlebars: Nitto B115, 42cm
Stem: Kalloy threadless, 100mm
Headset: Kogswell (included w/frameset)
Brakeset: Tektro CR720 w/Yokozuna salmon pads
Brake Levers: Shimano 600
Saddle: Terry Fly Ti
Seat post: American Classic, 27.4mm
Accessories: Nashbar front rack (modified/customized) with Zugster custom rando bag, Velo-Orange 49mm fluted alloy fenders, Velo-Orange alloy bell, Zefal HPX-4 pump, Performance Forte Terra Lite Stainless MTB Cage (2), SI 90 computer, hand-built/custom triple-Cree dyno headlamp



Scam Alert!

Dear World,

It has been brought to my attention that someone has taken this photo of my 1993 Bontrager Racelite frame from my Flickr account and is posting bogus for-sale ads around the interwebs using said photo. If you see ads entitled anything like "Bontrager Racelite Frame - $495", BEWARE!

So far we've found bogus ads at Serotta Forums (deleted), MTBR, Dirtrag Forums, Albany Craigslist, and Pinkbike.com Forums. Undoubtedly there are more.