GS Torque Arm length?

Motocod · Post by **Motocod** » Fri Jun 28, 2013 8:33 am

Can anyone tell me the length of a GS Torque Arm? I believe my bike is the Sports spec, so may already have a shorter arm anyway, and I want to check before I buy one.

What it may mean is I look to get something even shorter made up. Does anyone know if there is an ultimate limitation on that? In other words, how far can you go with the swingarm before the driveshaft joint(s?) run out of play?

Nik

Bikerhoss · Post by **Bikerhoss** » Fri Jun 28, 2013 8:55 am

The GS unit is 365mm and the shortest I've heard of going is 355mm on a Verholen adjustable torque arm, but I'm no expert on minimum lengths here, hope that helps

Motocod · Post by **Motocod** » Fri Jun 28, 2013 9:41 am

Thank you kind Sir, much appreciated!

Nik

Stanley · Post by **Stanley** » Fri Jun 28, 2013 4:59 pm

Assuming this is an 1100:

You need to keep the uj angle at the front, the same as the uj angle at the back.
So- if you increase or decrease the shock length; you should alter the torque arm length to regain you matched uj angles.

If you just change the torque arm length; you ruin the matched angles, and say "Hello" to vibration, shagged ujs, etc.

Corvus · Post by **Corvus** » Mon Jul 01, 2013 8:52 pm

For the bevel drive input shat centre to remain parallel to the gearbox output shaft centre, over the suspension travel, wouldn't the centre distance of the swingarm pivots have to be exactly equal to the link arm (torque arm) pivot distance?

Is that right?

Are these distances equal anyway?

Cheers.