wired2008

You guys convinced me and after one season I will change the swingarm for a longer one. The drags are Flat, I have a Duneable tranny 1-5 ND and Straight Cut gears. Can I compensate my short 4" swing arm with 14/42 gearing ? what could work better in my case ?

The other side of the coin is that with a +10" swing arm people won't race you a lot and I will be forced to a category with just few guys.

I think this is going to be more fun than what I have imagined ... haha

Do you mean a 4mm with a longer swingarm , the proper gear ratio and a stellar chassis or modified chassis ?

Do you feel any vibration due to the staggered Paddles ? I read some post but I could not decide if that was ok for the kind of use I will give to these tires.

Yes , I want to win drag races but Drags are not as competitive as i the US. Our race are mixed Yamahas 450 , cubs, +4 mm and +4 is the longest swinarm except for a few guys (2 or 3). My project was to build the a +10mm from a known builder ( not sure but may be the first here ) and try to keep it hybrid with some advantages in power.

The 90 to 100 HP are just an estimate Power as the motor will be built and dyno as soon as the parts arrive this month. I decided to test the +4 to be able to ride dunes and drag as there is only 2 or 3 people I know that have longer swing arms here. After a season of experience with the +4, I will not doubt to upgrade for a longer swingarm if a +6 or a +8 allow me to ride the same way and Drag. What RO do you have ? Does it make any noticeable difference ?

This is what Cameron sent me : RAW 10mm serval cylinder ported. Custom cut 23-24cc domes 10mm crank with TZ bearing and max load bearing , trued and welded Pump gas domes 68mm 10mm (custom) Full drag port on cylinder and nikasil Perfect banshee tranny core complete Duneable tranny 1-5 ND V-Force reeds V4 Keihn carbs 39mm jetted 39mm intake boots UPP SCP inframe small bore drag show chrome +4" swing arm Lonestar

I have a +4"

Ok guys, I need your help. I bought a 421 10mm Serval motor custom Kit ( shoud make 100HP I hope ) from Redline to be used in Pinamar Dunes in Argentina. After reading some post and a quick call to the manufacturer , I am thinking that for the rear tires I should be buying a couple of Skat-Trak 22x11x8 RO 74+ 12 Paddles Extreme on DWT Black Level to be used as 70% Drags and 30% Dune riding. My weigh is 210 pounds and the Sand where we drag depending on the day is dry to a little humid. Based on your experience What should be the ideal Size, paddle, RO, etc ? Thanks. Sergio.