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bgm supercharged dampers

Posted: Mon Jun 18, 2012 8:50 pm
by col68
I have just fitted my new bgm dampers i only have 27mm of the chrome shaft showing and they are bottoming out when i braking, they are set on the hardest setting . when they are fully out off the bike there is 48 mm showing . bike has got standard springs in the forks . the brackets are welded on the fork legs at 23.5cm as it says in the sticky book . bike is an s2 li with ts1 and disc brake fitted . what do you think . :? :? :?: :?:

bgm supercharged dampers

Posted: Mon Jun 18, 2012 9:13 pm
by soulsurfer
I think we need a picture...

Re: bgm supercharged dampers

Posted: Mon Jun 18, 2012 9:34 pm
by col68
dont know how to put pics on . took them off bike at mo don't want to break off mountings top or bottom !! got cleethropes rally at weekend . want to get a solution before i refit them .

Re: bgm supercharged dampers

Posted: Mon Jun 18, 2012 9:51 pm
by CPH Lambretta
I had exactly the same problem with mine.
I built my GP when the first edition of Stickys book was out.
I noticed he changed things regarding damper bracket positioning for the second edition.

Re: bgm supercharged dampers

Posted: Mon Jun 18, 2012 9:59 pm
by col68
what is the measurement in the new book ?

Re: bgm supercharged dampers

Posted: Tue Jun 19, 2012 2:31 am
by Minority
If it's an outboard disc, convert to antidive, problem solved. Most people who have done the conversion reckon it's fantstic.

Re: bgm supercharged dampers

Posted: Tue Jun 19, 2012 7:43 am
by coaster
Minority wrote:If it's an outboard disc, convert to antidive, problem solved. Most people who have done the conversion reckon it's fantstic.
That won't stop them bottoming out on bumps, only on braking

Re: bgm supercharged dampers

Posted: Tue Jun 19, 2012 8:25 am
by Minority
coaster wrote:
Minority wrote:If it's an outboard disc, convert to antidive, problem solved. Most people who have done the conversion reckon it's fantstic.
That won't stop them bottoming out on bumps, only on braking
OP only complained about bottoming out on braking, but your right of course, it won't make any difference to bumps ;)

Re: bgm supercharged dampers

Posted: Tue Jun 19, 2012 9:43 pm
by jason frost
Remove the bottom buffers and fit the smaller type, should give abit more room.

Re: bgm supercharged dampers

Posted: Wed Jun 20, 2012 7:44 am
by col68
thanks for the help new sticky book says set them at 23.5cm-24.5cm and smaller buffers will put it right. I think i may change springs to . ta col