Tuesday, June 29, 2010

Black Mountain Cycles frame info...

Here's some basic info on the frame - geometry and info on parts specs that get attached to the frame. If anyone would like more info, just post a comment or e-mail me. Thanks.

Road
Seat post: 27.2
Front derailleur: 28.6
Rear hub spacing: 130mm
Bottom bracket: 68mm, British threads
Headset: Threadless 1 1/8"
Max tire size: 33.3mm without fenders, 28mm with fenders

Cross
Seat post: 27.2
Front derailleur: 28.6
Rear hub spacing: 132.5mm (run either 130 or 135 spaced hubs)
Bottom bracket: 68mm British threads
Headset: Threadless 1 1/8"
Max tire size: The frame was designed to fit the Panaracer FireCross 45 which actually measures close to 50 at the widest point of the knobs, but was not designed to fit a 29" tire. Besides, a 29" tire is for mountain bikes and this is a cross bike.

Click on the chart below to view a larger, easier to read size.

BMC geometry

(What's playing: KWMR)

2 comments:

Alex said...

What kind of dropouts on the road bike?

blackmountaincycles said...

They are a simple socket type dropout w/ vertical slots. I'll post a picture next time I do an update (soon).