Comes with oe Honda head gasket set

Here we have a  STRAIGHT FIT 61mm bore 150cc with the smaller 63.5mm od skirt /linner Big bore kit for a Honda TL125 and CT125 CB125S (150 CC ) 25CC INCREASE  also fits XL125 CB100 CB125 CT125 SL125

It's the easy fit version fits all models  WITHOUT MODIFICATIONS

61mm bore can be rebored to 62mm later if required 

big increase ,Please check the photo the kit you see in the photo is the kit you get  gives you a hell of a difference makes hill climbs easy pulls 1 gear higher everywhere ,NO mods needed to crankcases on earlier tl125.     modifed cylinder skirt by us to make striaght fit into earlier small crankcase mouth 63.50 

But this will mean that can only be rebored at later date to 62 mm max , as bore is 61mm and crankcase hole is 63.5


To fit  our other kit with the cylinder with 68mm linner / spigot in our other listings

With the big full width liner /spigot bottom 68mm skirt /spigot so you can bore up to 63.5 or 65.5 mm  same as tlr200 bore size  you must enlarge your crankcases to 68mm which is outer dia of sprigot on cylinder 

Available in my other listing 

Or  some tl125 bikes have the larger crankcases allready 1976 onwards  mainly s models all XL125RC bikes have the large crankcases 


This listing is for the kit that fits THE SMALLER  63.5mm crank case hole will fit all 

Early TL CB XL sl CT

Striaght fit no mods 

 mods allready done  to cyl ,piston crown and and piston skirt   to this kit for earlier models to acquire correct squish band ,valve clearance and clearance on skirt for crank clearance as well as spigot  size machined down to fit all 


This is a bigger fincylinder for better cooling sim to tlr200 ,relined and bored to 150cc patterned modified in the uk piston kit and oversize gaskets

everything in the photo you receive 


62 mm over size pistons availible for furture   Rebores 



You can buy with confidence from a UK company modifying these big bore kits in the UK TO BE STRAIGHT FIT WITHOUT HASLE ,ALLWAYS AT THE END OF A PHONE FOR ADVICE ETC. AND FOR FURTURE SINGLE ITEMS GASKETS OVERSIZE PISTONS ETC delivering from the UK CARRYING STOCK IN UK Delivering to your door within 2 days 


IMPORTANT BERLT BIGBORE KITS ARE FOR COMPETITION USE ONLY

TRACK DAYS / DIRT RACING/ CLOSED CIRCUIT RACING ONLY

NOT SUITABLE FOR ROAD USE

Due to the highly tuned nature of the product


IMPORTANT GOODS SENT TO WORLD WIDE DESTINATIONS CAN NOW BE SUBJECT TO EXTRA GOVERNMENT TAXES/DUTY ON ARIVAL TO YOUR COUNTRY THIS HAS NOTHING TO DO WITH US AND IS BEYOND OUR CONTROL PLEASE CONTACT YOUR GOVERNMENT /POST OFFICE