Mx Bike questions

[dsracer322]

Hey guys, What is everyone running for gearing an stuff like that on there mx bikes? An anything else that is a must have for mx racing, I have the mx arms an pipe an remaped ecu. Let me know. Thank you

[DiRtDevilz1]

hey man sounds like u got the major stuff Now what U Probably want is to get a Billet basket from ether BCS or HINSON racing sense the 08' r junk and the rest of them are slightly better than junk. Basicly this is the part of the engine that takes the most abuse while racing so I wouldnt trust the stock basket at all. A set of Louvers for your rad. they will keep your engine from overheating cause mud wont be able to cake onto your radiator. U will need a tether switch to race. takes about 15min to install and only cost about $30. And mabe a inline cooler. It will help with engine temps and is cheap insurance on your engine. Other than that make sure u have the sag set right on your suspension and u should be ready to go.....dont think anything else is really a must anyway.
inline cooler
BCS PERFORMANCE CAN AM DS450 INLINE RADIATOR COOLER - $39.99 :: BCS Performance - ATV Performance

Radiator Louvers
DS450 RADIATOR LOUVER KIT [DS450] - $90.00 :: BCS Performance - ATV Performance

Tether switch
Pro Armor Pro Series ATV Tether Kill Switch : eBay Motors (item 110492500779 end time Apr-10-10 10:30:11 PDT)

[kbruce130]

If you are converting a regular DS over to MX you will also want to change the rear sprocket from the current 42 over to a 39 tooth. That will keep your gearing the same when you convert over to 18" tires and it will also give you more rear ground clearance.

[TNT]

We're running 14/39 for MX I got Warnert looking for a 37 rear for larger tracks anyone know where I can one let me know.

BTW, the race ECU does not remap your fuel curve all it does is remove an engine protective mode called 'limp home" and keep you from going into that mode in a race(FYI: if you don't race you don't need to get it removed it's better to keep it), a piggy back fuel controller such as a PC 3 or 5 will intercept the stock ECU fuel signal and remap it based on a dyno tune.