Kit ATHENA RACING BIG BORE 182,5cc with engine reprogramming box for scooter MBK / YAMAHA with MINARELLI engine injection 4T 125cc. This kit is composed of a reinforced aluminum cylinder treated nicasil 63mm diameter, which increases the engine capacity to 182.6cc of torque and power with the original crankshaft stroke 58.6mm! The piston VERTEX offers a new compression ratio more powerful 11.4: 1 against 11.2: 1 of origin, the torque curve climbs so not bad too! With the reprogramming box, you switch to a new cartography! The pure gain (tested on the bench) is huge, more than 20% of power and torque won! The power goes from around 10.95 to 13.25 hp real! We recommend this kit with a sports air filter , a sport variator and a sports exhaust system without catalyst, a racing irridium racing candle is always better if you have all the equipment, so go on a CR8EIX ! The kit comes with the harness for easy connection, joints, segments, axis, els clips, seals, very complete instructions ... Use only SP98!

Mounts on :
MBK CITYLINER 125 4T LC 2006 to 2012
MBK SKYCRUISER 125 4T LC 2006 to 2012
YAMAHA X CITY 125 ie 4T LC 2006 to 2012
YAMAHA X MAX 125 ie 4T LC 2006 to 2012