Changing crankset
05-22-05, 05:44 PM
#1
Junior Member
Thread Starter
Join Date: Apr 2005
Posts: 12
Bikes: Trek 420,Trek 3700, Mongoose (the good ones) Alta
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times
in
0 Posts
Changing crankset
I would like to change the Suntour XCC100 crankset off my Trek 3700 as the chainrings are riveted and I am looking for an inner ring smaller then the 28t that is on it. As an entry level mechanic, what am I looking at as far as difficulty? I believe the BB has to match up with the new crankset, right? The derailleur must be capable of handling the new chainrings, how am I doing so far? What else, any help would be appreciated. If this has been addressed previously, sorry for the repeat.
05-22-05, 05:52 PM
#2
Senior Member
Join Date: Feb 2004
Location: St Peters, Missouri
Posts: 30,225
Bikes: Catrike 559 I own some others but they don't get ridden very much.
Mentioned: 16 Post(s)
Tagged: 0 Thread(s)
Quoted: 1572 Post(s)
Liked 643 Times
in
364 Posts
It's easily done but may require some special tools.
If you have a 28 tooth inner ring now, I suspect you have a 28/38/48 crankset. Typical chainring sizes for a more modern crank might be 22/32/44. If it was my bike, I'd install a new crankset and bottom bracket and see what happens if I lower the existing front derailleur a bit. If it shifts to my satisfaction, I'd leave it.
If you have a 28 tooth inner ring now, I suspect you have a 28/38/48 crankset. Typical chainring sizes for a more modern crank might be 22/32/44. If it was my bike, I'd install a new crankset and bottom bracket and see what happens if I lower the existing front derailleur a bit. If it shifts to my satisfaction, I'd leave it.
