35mm Betor forks

[bazza]

have done the Sudman suggestions on my forks-on BSA b44.with xtra 20wt oil.  Any one run stronger springs or PD valves or both? Back end of bike works well front not right yet.

[sudman]

Go to 30wt Bazza makes a big differents it was like night and day on my bike. Gavin gave it the big thumbs at the naki track for the way they worked.

[huskibul]

   Bit of a highjack,but a couple of years ago i came across a site where a bloke in us or canada modified 35mm betors for race bikes using cartridges or something similar that ! does anyone know of the bloke/mods ?  cheers

[bazza]

thanks Walter and thanks Sudman will try the 30weight for next weekends classic scramble club meeting

[asasin]

I Have the 290 valves and original progressive wound fork spring weight in my cooper/ yamaha they work ok with 1o weight but i did not drill the holes same as per the pd sheet i took a punjt and copied the drill hole layout in a VMX a few issues ago that showed a works CZ fork tube and a standard one  .seem to work well ,very progressive and do not bottom out , i am over 100kg geared up