RamTec
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I'm seeing different (apparently both OEM) damper rod set ups on two pairs of 43mm forks. On the left of photo is an older set (with aftermarket progressive springs - not Maxton btw) with OEM damper rods that appear identical to those depicted in my workshop manual. On the right is a younger set from my 2007 Canadian spec (Japanese full power) model (registered 2008).
The two different types of damper rods are secured by different sized bolts, so they're not interchangeable, not least because the lower fork legs have different sized apertures. I've also measured significant differences in damping rod oil hole sizes.
I'm not seeing alternative part numbers on the official parts list.
1. Any idea when the spec changed and Yamaha's intention, other than reducing unsprung weight?
2. Did Yamaha change the spring rate at the same time, because my OEM 2007 springs seem to perform very well (with the assistance of 7psi)?
Suspension travel data (Fr + Rr) comparisons gathered during sports riding.
Please stay relevant to the thread
The two different types of damper rods are secured by different sized bolts, so they're not interchangeable, not least because the lower fork legs have different sized apertures. I've also measured significant differences in damping rod oil hole sizes.
I'm not seeing alternative part numbers on the official parts list.
1. Any idea when the spec changed and Yamaha's intention, other than reducing unsprung weight?
2. Did Yamaha change the spring rate at the same time, because my OEM 2007 springs seem to perform very well (with the assistance of 7psi)?
Suspension travel data (Fr + Rr) comparisons gathered during sports riding.
Please stay relevant to the thread