BELRAY IN THE UK FROM MOTOFAX
Thumper oil
THUMPER 20/50 RACE OIL THUMPER RACING OIL A 20/50 GRADE SEMI SYNTHETIC OIL FOR SINGLE
CYLINDER 4 STROKE OFF ROAD BIKES. USING BEL RAYS UNIQUE ADDITIVES TO GIVE YOU THE HIGHEST LEVEL OF WEAR PROTECTION AVAILABLE. PROVEN UNDER  SEVERE INTERNATIONAL RACE CONDITIONS BY SOME LEADING RACE TEAMS TO  INCREASE PERFORMANCE AND ENGINE  AND CLUTCH LIFE WHILE MAINTAINING MAXIMUM PROTECTION. BEL RAY   THUMPER RACING OIL IS ORANGE IN COLOUR FOR EASY IDENTIFICATION. YOU KNOW WHEN YOU’VE BEEN THUMPERED.

GRADE 20/50
PACK SIZE 1 LITRE & 4 LITRE

ALSO AVAILABLE IN WORKSHOP QUANTITIES PLEASE ASK
THUMPER 10/40 OIL OIL A BRAND NEW 10/40 GRADE SEMI SYNTHETIC OIL FOR SINGLE CYLINDER 4 STROKE OFF ROAD BIKES. USING BEL RAYS UNIQUE ADDITIVES TO GIVE YOU THE HIGHEST LEVEL OF WEAR PROTECTION NOW AVAILABLE IN A 10/40 THUMPER OIL.  BEL RAY THUMPER RACING OIL IS ORANGE IN COLOUR FOR EASY IDENTIFICATION. YOU KNOW WHEN YOU’VE BEEN THUMPERED.

GRADE 10/40 & 20/50
PACK SIZE 1 LITRE & 4 LITRE

ALSO AVAILABLE IN WORKSHOP QUANTITIES PLEASE ASK
RETURN TO RANGE.
Thumper Technology.
What type of oil should I use in my brand new 250cc four-stroke motocross bike?


Bel-Ray is the motorcycle lubrication expert and we have taken it upon ourselves to make the best motorcycle oil possible for 4-stroke motocross bikes. We have done extensive research and testing to develop oil specifically for off-road 4-stroke racing engines like the one found in your 250F. Bel-Ray Thumper 4-stroke Racing Motor Oil is a synthetic blend racing oil with an additive package designed to take care of high revving, high heat thumper engines. It offers the top level of piston, cylinder, valve train, and transmission protection under harsh abuse in the woods or on the race track. The synthetic PAO and ester base stocks used in the blend release maximum engine power and give outstanding clutch performance. It comes in both 10W-40 and 20W-50, both of which are great choices for your bike depending on the temperatures you ride in.