32? I assumed you had 40mm on a 100rt!!
first ride today
- Thread starter chrisshrops
- Start date
chrisshrops
Registered user
Nope it's a mono a 93 model it even had the clean air gubins
id got it in my head that it was an 83 twin shock!!
chrisshrops
Registered user
A new shock from M shock on order today and some race tech fork springs any of you bright sparks know how much sag you should have on a naked rt ?
chrisshrops
Registered user
Well I ended up with hyperpro fork springs ,as the race tech worked out rather expensive with import duty etc,
The springs work very well ,they came with 20 wt oil I foolishly put it in the forks after hyperpro assured me it would be right ,it was like riding a solid front end I now have 12 wt and it's very plush .
The rear shock is due too land next week I am looking forward too a better ride they look very smart on the web site http://www.shock-factory.co.uk/m-shocks-home.html
The springs work very well ,they came with 20 wt oil I foolishly put it in the forks after hyperpro assured me it would be right ,it was like riding a solid front end I now have 12 wt and it's very plush .
The rear shock is due too land next week I am looking forward too a better ride they look very smart on the web site http://www.shock-factory.co.uk/m-shocks-home.html
Beemerboff
Registered user
Sag on the front should be balanced with the rear, so wait till you get the new shock, and measure the rear rider sag with that.
Most bikes work best with about 10% more sag on the front , and for road use around 40/45 mm rear and 45/50 mm front works fine for most, if your damping is right.
If it is close you can adjust it at either end, as what you are setting is balance, front to rear. But according to folk who know, like Ohlins, the rear shock preload shouldn't be changed more than +- 3/4 mm.
Your new shock should be set to your specifications, so adjusting the fork spring spacer to get the front sag matching the rear would be the way to go - you want somewhere between 10 and 30 mm preload on the springs , and if you cant get the correct sag in that range the springs dont math the shock.
I prefer a good Synth Suspension Fluid in the forks, and the factory grade works best for me.
The key to knowing when you are getting close to the mark is when adjusting one end makes both ends noticeably better, and it is worth a bit of effort to get it right - stock BMW suspension forks work very well when properly set up with a matching shock!
Most bikes work best with about 10% more sag on the front , and for road use around 40/45 mm rear and 45/50 mm front works fine for most, if your damping is right.
If it is close you can adjust it at either end, as what you are setting is balance, front to rear. But according to folk who know, like Ohlins, the rear shock preload shouldn't be changed more than +- 3/4 mm.
Your new shock should be set to your specifications, so adjusting the fork spring spacer to get the front sag matching the rear would be the way to go - you want somewhere between 10 and 30 mm preload on the springs , and if you cant get the correct sag in that range the springs dont math the shock.
I prefer a good Synth Suspension Fluid in the forks, and the factory grade works best for me.
The key to knowing when you are getting close to the mark is when adjusting one end makes both ends noticeably better, and it is worth a bit of effort to get it right - stock BMW suspension forks work very well when properly set up with a matching shock!
chrisshrops
Registered user
thanks Sir
i will have a go next weekend and see were we end up
i will have a go next weekend and see were we end up
