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No Swingarm?????
Posted: Tue Jul 11, 2006 1:59 am
by Mr_Salad
I just got handed this flyer from a co-worker, advertising for the grand opening of this new custom cycle shop. The big show-off bike on the front doesn't appear to have a swingarm, AT ALL!!
So I ask her where the swing arm is and she replies, "There isn't one."
Anyone know how this works/if she knows what she is talking about?
pic
Posted: Tue Jul 11, 2006 2:07 am
by Mr_Salad
Here is a link to the shop's website:
http://www.midatlanticcustomcycles.com/home.htm
The "Swingarm-less" Chopper is the red one on the top.
Is it just a single swing arm on the other side? Or do they have something funny going on?
Posted: Tue Jul 11, 2006 2:48 am
by sharpmagna
Hey that's not too far from my house and it seems they're having a grand opening on the 15th. I'll have to check them out...
It does have a single sided swing arm from their website.
Posted: Tue Jul 11, 2006 4:56 am
by Mr_Salad
Good deal.
Just trying to make sure that this little shop hasn't invented some insane electromagnetic/frictionless swingarm...
Posted: Tue Jul 11, 2006 5:43 am
by Stratus311
Well without being able to see the other side with the swingarm, if there is no sprocket, then it is a Friction Drive. They basically use a knurled aluminum drum that spins on the wheel for forward motion.
Posted: Tue Jul 11, 2006 4:58 pm
by CORSCO
Stratus311 wrote:Well without being able to see the other side with the swingarm, if there is no sprocket, then it is a Friction Drive. They basically use a knurled aluminum drum that spins on the wheel for forward motion.
so what holds the wheel?
Posted: Wed Jul 12, 2006 12:19 am
by Stratus311
As long as it has a "swingarm" on the other side, it's basically a big bolt hub type thing that holds the wheel on. Basically just like a single sided swingarm on a Ducati or something.
EDIT: After going to Bourget's Bike Works website, I found out it's the Viper 2 and it's just a single sided swingarm.
Posted: Wed Jul 12, 2006 1:26 am
by Mr_Salad
That friction drive sounds pretty interesting. How does it get power to the drum? No sprocket, so there must not be a chain. Some weird shaft, maybe?
I asked around at work and all the guys seemed to agree that it was a single sided swingarm on the opposite side of the bike.
Posted: Wed Jul 12, 2006 6:26 pm
by niterider
It is very likely shaft driven.
Posted: Thu Jul 13, 2006 12:06 am
by Stratus311
Basically it still has a chain but only to spin the drum. There is a special gearbox you use in order to spin the drum the reverse direction which spins the wheel in the forward direction.