Previous Home Next

surlycrank-a

Surly's prototype crankset. This unit uses a 58 mm BCD spider to attach a larger spider for the outer rings. It is anticipated that you would be able to built this up as a 130/58, 110/58 or 94/58 triple. Since 58 mm BCD chainrings come as small as 20 teeth, this crankset should find great favor with touring cyclists and other fans of extremely wide range gearing.

The crank is a three-piece system, but intended for outboard bearing bottom brackets.

image

Articles by Sheldon Brown and others
Harris
Home
Beginners Brakes Commuting
Lights
Cycle-
Computers
Do-It-
Yourself
Essays
Family
Cycling
Fixed Gear
Singlespeed
Frames Gears &
Drivetrain
Bicycle
Humor
Bicycle
Glossary
Bicycle
Links
Old
Bikes
Repair
Tips
Tandems Touring What's
New
Wheels Sheldon
Brown

Accessories Bicycles Parts Specials Tools

Copyright © 2006, 2007 Sheldon Brown

Back to the Harris Cyclery Home Page

URL: http://sheldonbrown.com/lasvegas/2006