Mountain Biking - Oooh, I like.

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.



PDA

View Full Version : Oooh, I like.

Dannihilator
01-27-11, 10:36 PM
http://dmrbikes.com/?Section=page&p=/newnews/&f=newsproducts&newsid=211

I may have to get one.;)

dminor
01-27-11, 11:45 PM
Interesting. Not many people doing concentrics any more. Lenz and Rotec are two that come to mind. Hinged dogbone is a unique approach too.
Dannihilator
01-27-11, 11:50 PM
Black market has a concentric with the killswitch

dminor
01-27-11, 11:54 PM
That's right. I think I like the looks of the DMR better. I know the Killswitch probably works fine - - just looks odd.

Gotta ask at this point though: why not go with a Bottlerocket or Double and be done with it?
Dannihilator
01-28-11, 12:02 AM
Won't fit on my bike rack and that I don't exactly have the best luck with aluminum. Which is why the Bolt is intriguing to me.
ed
01-28-11, 05:46 AM
Hinge looks excessive and just one more bushing/bearing to loosen up.
dminor
01-28-11, 10:23 AM
In thinking about this more, when you have a fixed swingarm, you have to have some kind of hinging in the swing-link - - or have pivots or flex in the seatstays (like the Yeti AS-Rs and 575s). Any way you do it, there's going to be pivots and bearings.

Looking back at my AS-X, it had a small dogbone that attached the shock to the swing-link; so it too was actually a sort of scissor:

http://i160.photobucket.com/albums/t162/dminorwa/Right.jpg

And, yes, I had to replace some bearings once; but they were standard industrial cartridge so I got them pretty cheap at the local bearing supply.