23-10-2023, 04:17 PM
Not always Matt, quite a few run 18" on the rear using the Cheng Shin version of the Dunlop K70 tyre.
I used to run the Cup Model on 19" using Avon SM 4.00x19
Don't forget a 5.625:1 rear axle ratio and a crash 4 speed box unless you're doing the VSCC Welsh then you need your 3 speed.
Glue you tyres on for VSCC, motorcycle security clamps for all other trials.
See you on the Exeter..... Or Lands End if you need a little more time!!
I used to run the Cup Model on 19" using Avon SM 4.00x19
Don't forget a 5.625:1 rear axle ratio and a crash 4 speed box unless you're doing the VSCC Welsh then you need your 3 speed.
Glue you tyres on for VSCC, motorcycle security clamps for all other trials.
See you on the Exeter..... Or Lands End if you need a little more time!!