Howdy,
I have an '08 Trek 4500 bike that has been pretty much stock since I bought it new. I've had the LBS replace the crank twice (both square taper) due to failures. It's a hardtail that I ride about once a week on some local mtb trails (winter and summer). I am hoping to upgrade to 9spd components and disc brakes as my wheel walls are completely worn down from the v-brakes grinding on grit. I really love the frame fit and feel to death so I do not wish to get a new bike. Here is my parts list that I hope to order soon I am shooting for sub $500 budget. I'm good at wrenching but don't have much experience with bike parts, let me know what you think!
This is my current parts list to order:
Crankset (170mm)
https://www.jensonusa.com/store/product/CR303A00-Shimano+Lx+Fc-M582+Crankset.aspx
-or-
http://www.jensonusa.com/store/product/CR302A06-Race+Face+Evolve+Dh+Cranksets+08.aspx
Cassette 11-32T
http://www.jensonusa.com/store/product/CS708B15-Sram+Pg+970+Cassette.aspx
Chain
http://www.jensonusa.com/store/product/CH707B07-Shimano+Hg-93+9Sp+Chain.aspx
Rear derailleur (both rapid rise)
Deore LX long cage (upt to 45T)
http://www.jensonusa.com/store/product/RD604A01-Shimano+Lx+Rd-M580+Rear+Derailleur.aspx
-or-
Deore XT short cage (up to 34T)
http://www.jensonusa.com/store/product/RD306A01-Shimano+Deore+Xt+M770+Rear+Derailleur.aspx
Disc brakes (185mm)
http://www.jensonusa.com/store/product/BR291C01-Avid+Bb7+Mechanical+Disc+Brake+09.aspx
Wheels
http://www.jensonusa.com/store/product/WH297A00-Shimano+Xt+756+Wtb+Fx28+Wheelset.aspx
Already have:
My fork is still in decent shape and I just ordered some 9spd Deore LX rapidfire shifters. Also my frame and fork have disc brake mounts (haven't measured the size just yet)
Some specific questions I have are about the cranks, rear derailleur and disc brakes.
Which crank should I choose from the two I listed above?? My old square taper ones don't seem to last long, currently I weigh 185lbs. My riding is fairly aggressive on mild terrain and I definitely make use of my bashguard.
I believe I need to get the XT rear derailleur (Jenson doesn't have the Deore LX in short cage). The short cages fit from 11-34T which is okay for the SRAM cassette I picked out correct? Or do I need to get a long cage like the Deore LX I have posted?? I realize they are low normal, that's what I'm going for. I never use the largest 3rd chainring on the front if that makes a difference (I have a bashguard)
What size rotors should I get? I have selected (2) 186mm for front and rear. Should I go bigger to 203mm? Should I do a large front, small rear (160mm), or both small (160mm)? Do larger ones tend to go out of true more easily?
Thanks for any advice/tips!
I have an '08 Trek 4500 bike that has been pretty much stock since I bought it new. I've had the LBS replace the crank twice (both square taper) due to failures. It's a hardtail that I ride about once a week on some local mtb trails (winter and summer). I am hoping to upgrade to 9spd components and disc brakes as my wheel walls are completely worn down from the v-brakes grinding on grit. I really love the frame fit and feel to death so I do not wish to get a new bike. Here is my parts list that I hope to order soon I am shooting for sub $500 budget. I'm good at wrenching but don't have much experience with bike parts, let me know what you think!
This is my current parts list to order:
Crankset (170mm)
https://www.jensonusa.com/store/product/CR303A00-Shimano+Lx+Fc-M582+Crankset.aspx
-or-
http://www.jensonusa.com/store/product/CR302A06-Race+Face+Evolve+Dh+Cranksets+08.aspx
Cassette 11-32T
http://www.jensonusa.com/store/product/CS708B15-Sram+Pg+970+Cassette.aspx
Chain
http://www.jensonusa.com/store/product/CH707B07-Shimano+Hg-93+9Sp+Chain.aspx
Rear derailleur (both rapid rise)
Deore LX long cage (upt to 45T)
http://www.jensonusa.com/store/product/RD604A01-Shimano+Lx+Rd-M580+Rear+Derailleur.aspx
-or-
Deore XT short cage (up to 34T)
http://www.jensonusa.com/store/product/RD306A01-Shimano+Deore+Xt+M770+Rear+Derailleur.aspx
Disc brakes (185mm)
http://www.jensonusa.com/store/product/BR291C01-Avid+Bb7+Mechanical+Disc+Brake+09.aspx
Wheels
http://www.jensonusa.com/store/product/WH297A00-Shimano+Xt+756+Wtb+Fx28+Wheelset.aspx
Already have:
My fork is still in decent shape and I just ordered some 9spd Deore LX rapidfire shifters. Also my frame and fork have disc brake mounts (haven't measured the size just yet)
Some specific questions I have are about the cranks, rear derailleur and disc brakes.
Which crank should I choose from the two I listed above?? My old square taper ones don't seem to last long, currently I weigh 185lbs. My riding is fairly aggressive on mild terrain and I definitely make use of my bashguard.
I believe I need to get the XT rear derailleur (Jenson doesn't have the Deore LX in short cage). The short cages fit from 11-34T which is okay for the SRAM cassette I picked out correct? Or do I need to get a long cage like the Deore LX I have posted?? I realize they are low normal, that's what I'm going for. I never use the largest 3rd chainring on the front if that makes a difference (I have a bashguard)
What size rotors should I get? I have selected (2) 186mm for front and rear. Should I go bigger to 203mm? Should I do a large front, small rear (160mm), or both small (160mm)? Do larger ones tend to go out of true more easily?
Thanks for any advice/tips!