An all new 750 kit with a difference. Read the blurb below.
Coming soon at a favorite vender.
Piston/ ring/wrist pin package is 11 grams lighter than a stock 650. They are sized at 79.99mm, to allow for potential honing of existing cylinders. Reduced headland for more power and better emissions, allowed by a truly complimentary squish band. (A true 10.5:1 is achieved)( to be verified). Modern ring package has 1mm top and 1.2mm 2nd ring, with a 2mm 3 piece oil ring. Connecting rod is 145mm c-c, achieving a 1.96:1 rod/stroke ratio, moving the torque peak up in the power band, smoothing the short rod's explosive midrange, increasing traction and peak power. Small end is bushed with premium C630 aluminum bronze and has 10% more area. Big end bearing has 3.5mm rollers for less skating at high speed.
This a is a long rod conversion.
Current estimate of price is $800 for pistons, rods, and big end bearings.
Mike at 650 Central is waiting on the first production units. This is racing oriented, but street use is possible if you don't mind revvving to get to the power band, and can find gas that won't detonate with the 10.5/1 compression.
You will need to split the crank to install the rods and decide how to get to 80mm bore cylinders.
Coming soon at a favorite vender.
Piston/ ring/wrist pin package is 11 grams lighter than a stock 650. They are sized at 79.99mm, to allow for potential honing of existing cylinders. Reduced headland for more power and better emissions, allowed by a truly complimentary squish band. (A true 10.5:1 is achieved)( to be verified). Modern ring package has 1mm top and 1.2mm 2nd ring, with a 2mm 3 piece oil ring. Connecting rod is 145mm c-c, achieving a 1.96:1 rod/stroke ratio, moving the torque peak up in the power band, smoothing the short rod's explosive midrange, increasing traction and peak power. Small end is bushed with premium C630 aluminum bronze and has 10% more area. Big end bearing has 3.5mm rollers for less skating at high speed.
This a is a long rod conversion.
Current estimate of price is $800 for pistons, rods, and big end bearings.
Mike at 650 Central is waiting on the first production units. This is racing oriented, but street use is possible if you don't mind revvving to get to the power band, and can find gas that won't detonate with the 10.5/1 compression.
You will need to split the crank to install the rods and decide how to get to 80mm bore cylinders.