robs ss
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I have been thinking about the rear iso's (dangerous territory... I know!)
The front ones are good - especially now that I have fitted one of the Mk3 head-steady springs. Each service I loosen the bolt and check that I can slide it back and forth by hand. Means that the front ones aren't preloaded vertically.
The rear ones are a different story - and more complicated.
1. When on the road the rear of the cradle is probably trying to sag down, under its own weight, between the front iso's and the rear axle.
2. On the centre-stand the iso loads will be reversed, pushing up to support the rear of the bike - back wheel off the ground
The bike spends most of its life in mode 2 - so I was thinking how the relieve this load.
If the bike is lifted by a small scissor-lift (jack) immediately in front of the centre-stand, the loading scenario would be the same as mode 1 above, albeit with the rear wheel off the ground.
I guessed that this might be less vertical load than when on the centre-stand so decided to test it.
I loosened the nuts on both sides of the rear iso's and, in stages, tapped the stud back-and-forth as I gradually raised the jack - expecting there to be a "sweet spot"
What I found is the stud slides most feely when both wheels and the centre-stand are off the ground.
Does any of this really matter? Maybe not - but reducing static load on iso's can't be a bad thing.
So, I'll be using the scissor jack more often.
Cheers
The front ones are good - especially now that I have fitted one of the Mk3 head-steady springs. Each service I loosen the bolt and check that I can slide it back and forth by hand. Means that the front ones aren't preloaded vertically.
The rear ones are a different story - and more complicated.
1. When on the road the rear of the cradle is probably trying to sag down, under its own weight, between the front iso's and the rear axle.
2. On the centre-stand the iso loads will be reversed, pushing up to support the rear of the bike - back wheel off the ground
The bike spends most of its life in mode 2 - so I was thinking how the relieve this load.
If the bike is lifted by a small scissor-lift (jack) immediately in front of the centre-stand, the loading scenario would be the same as mode 1 above, albeit with the rear wheel off the ground.
I guessed that this might be less vertical load than when on the centre-stand so decided to test it.
I loosened the nuts on both sides of the rear iso's and, in stages, tapped the stud back-and-forth as I gradually raised the jack - expecting there to be a "sweet spot"
What I found is the stud slides most feely when both wheels and the centre-stand are off the ground.
Does any of this really matter? Maybe not - but reducing static load on iso's can't be a bad thing.
So, I'll be using the scissor jack more often.
Cheers
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