Thread: Difference between Tiagra and 105 cranks?
View Single Post
Old 06-07-11 | 09:37 AM
  #4  
HillRider
Senior Member
 
Joined: Aug 2005
Posts: 33,657
Likes: 1,119
From: Pittsburgh, PA

Bikes: '96 Litespeed Catalyst, '05 Litespeed Firenze, '06 Litespeed Tuscany, '20 Surly Midnight Special, All are 3x10. It is hilly around here!

Originally Posted by FBinNY
Sora, and Tiagra cranks are intended for mtb, and 105 is a road crank.
I don't think this is correct. Shimano lists both groups under their "road bike" product lines and the both model cranks have a single 110mm BCD for their compact doubles, 130 mm BCD for the Tiagra standard double and 130/74 for both model triple crank bolt circles. Sounds pretty roadie to me.
HillRider is offline  
Reply
0