Mountain Biking - All-Mountain fitment

Bikeforums.net is a forum about nothing but bikes. Our community can help you find information about hard-to-find and localized information like bicycle tours, specialties like where in your area to have your recumbent bike serviced, or what are the best bicycle tires and seats for the activities you use your bike for.




View Full Version : All-Mountain fitment


brilan
06-25-07, 10:43 AM
I'm new to the forum, and just getting back into cycling. I need an enjoyable fitness program, and have decided to do some trail riding. I have a fitment problem due to a neck injury sustained in a motorcycle accident. My neck is pretty stiff, and looking "up" for very long leaves me in pain. I went to 5 LBS in Houston Saturday, and didn't find many bikes that offer an upright riding position, and exactly none with dual suspension, which is necessary to keep me off pain pills. One shop manager suggested an All-Mountain or Downhill style bike for their geometry. With South Texas being flat, there were no bikes like this to try at any of the LBS. I've located several bikes like the Session 7/77, Specialized S-Works Enduro, and Santa Cruz Bullit on Evil-Bay, but have questions.

I'm 5'6" with a 29" inseam (long torso), and ride with the seat about 25" above crank centerpoint(measured along seatpost). My old rigid bike is 16.5" with about 21.5" top tube length. By swapping bars, stem, etc, I was able to get a comfortable riding position with the grips at about 4" above the saddle. I just can't ride the rigid bike except on the road because of the jarring.

My question is whether an AM or DH bike can be configured in this way, and should I go with a 15.5" or 17" frame? I ride ranch roads and singletrack in flat South Texas, and Hill Country State Park trails, so I don't think component selection is much of an issue, so don't worry about that. I know my situation is not applicable to most people, so any help you guys can offer is appreciated.

Brian
Gulf Coast, Texas


Stacey
06-25-07, 11:04 AM
Have you thought about a thud buster on your rigid?

http://www.thudbuster.com/

jm01
06-25-07, 11:43 AM
I'd stay away from the down hill bikes...they're heavy and hard to peddle on the flats...they don't climb at all. Of the bikes you mentioned the Enduro is a nice light bike with an XC drive train...looks mean, but its a sub 30lb sweetheart. I wouldn't spring for the S-Works, though...Specialized uses the same shock and fork on all models so paying so much extra for the carbon frame to save a couple of pounds makes little sense.

I'd add a riser stem and bars for a more upright position,

I'm not familiar with the session, but the Bullit is a heavy bike as well ore of a free ride bike....those DH rigs work best with gravity...

Many people who have serious back pain prefer the recumbants...maybe these will work for you

good luck


brilan
06-26-07, 08:43 AM
I like the looks of the Enduro. There are even a couple of used ones out there. For those who have ridden one, can it be configured with an upright riding position, and what size frame would you recommend for my size? Thanks, Brian