Power, Torque, Response & Total Balance. A Fresh, New Stroker Kit Design to Suit a Wide Range Of Needs.
KIT CONTENTS
FORGED FULL COUNTER CRANKSHAFT
FORGED H-BEAM CONROD
FORGED PISTON KIT
STROKE COMPARISON
※ The above compression ratio is based on the combustion chamber volume of 50cc.
PRE MATCHED CONROD BEARING SET KITS
Tomei has made an option to include their Competition Bearing Series product with our kits. All the engine internals are brought to static temperature (20 degrees Celcius) and blueprinted with 0.040~0.060mm clearance bearings.
This eliminates the measuring and blueprinting process for the customer, so the kit can be installed with less hassle.
FORGED FULL COUNTER CRANKSHAFT
PART NUMBER: 121045
STROKE: 83mm
WEIGHT: 9.2kg
STANDARD STROKE: 79mm
STANDARD WEIGHT: 9.4kg
MATERIAL: SNCM39
STRENGTH & PRECISION
BALANCED FULL COUNTERWEIGHT
LIGHT & MINIMAL RESISTACE TYPE.
FORGED H-BEAM CONRODS
PART NUMBER: 125012
CENTER TO CENTER: 128.5mm
CONROD BIG END DIAMETER x THICKNESS: 55mm x 21.4m
CONROD SMALL END DIAMETER x THICKNESS: 23mm x 21.4mm
CONROD BOLT SCREW SIZE: 3/8 – 24
CONROD LENGHT UNDER NECK: 40mm
CONROD BEARING INNER DIAMETER: 52mm
CONROD BEARING INNER WIDTH: 10.5mm
MATERIAL: SNCM439
GROSS WEIGHT: 545 grams (average)
STOCK WEIGHT: 605 grams (average)
LIGHT WEIGHT, YET STRONG
HIGH TENSILE STRENGTH MATERIALS
WITH ARP L19 CONROD BOLTS
FORGED PISTON KIT
PART NUMBER: 1182997312
BORE DIAMETER: 99.75mm
PIN DIAMETER: 23.0mm
LENGTH: 62mm
VALVE RECESS: YES
COMPRESSION HEIGHT: 30.7mm
CROWN CAPACITY: 19.5cc
PISTON WEIGHT: 380 grams (approx)
PISTON PIN WEIGHT: 123 grams (approx)
GROSS WEIGHT: 503 grams (approx)
TOP RING BxT: 1.2 x 3.6mm
SECOND RING BxT: 1.2 x 4.0mm
OIL RING BxT: 2.0 x 3.0mm
MATERIAL: ALUMINUM
STOCK WEIGHT: 577grams (approx)
LOW FRICTION, TIGHT TOLERANCES
STRONGER &74g LIGHTER
OPTIMIZED FOR COMBUSTION
