9921450 Maxi kit Ø 49.5 TOP RACING 85cc, with single-ring cast iron cylinder and split head for Minarelli AM6 engines, including 44mm stroke full shoulder shaft.
Top Performances offers its best combination of performance and durability with the 85cc cylinder + crankshaft kit for Minarelli AM6.
The kit consists of a long stroke crankshaft (44mm stroke) and a large bore cylinder kit (49.5mm bore) with a 1-ring piston and a modular high compression combustion chamber. In combination, this results in a stroke of 85cc with a power output of approximately 17 - 19 HP.
TECHNICAL DATA
- Exhaust stroke: 191
- Suction time slot: 132
- Piston gap: 0.9 +/- 0.1 mm
- Compression ratio: 8:1
- Recommended pre-ignition: 17° (1 mm before TDC)
- Recommended spark plug: NGKBR10EG(V)
SUPPLY
- Cylinder kit (part number: 9921760)
- Piston
- Piston pin bearing
- Combustion chamber cap
- Water cap
- Set of gaskets
- Reduction bushing 28/25 mm
- Crankshaft
Note: Delivered without oil seal and crankshaft bearings. 2 different sizes are required: 6303 and 6204 (1x AM6 and 1x Derbi bearing).
Compatibility Table
MINARELLI AM6
STROKE 44mm APRILIA MX 50 2T LC AM6
STROKE 44mm APRILIA RS 50 2T LC AM6
STROKE 44mm APRILIA TUONO 50 2T LC AM6
TRAVEL 44mm BETA ENDURO RR 50 2T LC AM6
TRAVEL 44mm BETA ENDURO RR RACING 50 2T LC AM6
STROKE 44mm BETA SUPERMOTARD RR 50 2T LC AM6
STROKE 44mm BETA SUPERMOTARD RR ALU 50 2T LC AM6
STROKE 44mm FANTIC CABALLERO 50 2T LC AM6
STROKE 44mm HM CR E DERAPAGE 50 2T LC AM6
STROKE 44mm HM CRE SIX Comp. 50 ie 2T LC 2013-> AM6
STROKE 44mm HM DERAPAGE RR 11 50 2T LC AM6
STROKE 44mm HUSQVARNA CH RACING 50 2T LC AM6
STROKE 44mm MALAGUTI XSM - XTM 50 2T LC AM6
STROKE 44mm MBK X-LIMIT 50 2T LC AM6
STROKE 44mm MBK X-POWER 50 2T LC AM6
STROKE 44mm PEUGEOT XPS 50 2T LC AM6
STROKE 44mm PEUGEOT XR6 50 2T LC AM6
STROKE 44mm PEUGEOT XR7 50 2T LC AM6
STROKE 44mm RIEJU RS2 50 2T LC AM6
SHERCO HRD 50 2T LC AM6
STROKE 44mm YAMAHA DT 50 R 50 2T LC euro 2 AM6
STROKE 44mm YAMAHA DT 50 X 50 2T LC euro 2 AM6
STROKE 44mm YAMAHA TZR 50 2T LC AM6
APRILIA MX 50 2T LC AM6
APRILIA RS 50 2T LC AM6
APRILIA TUONO 50 2T LC AM6
BETA ENDURO RR 50 2T LC AM6
BETA ENDURO RR RACING 50 2T LC AM6
BETA SUPERMOTARD RR 50 2T LC AM6
BETA SUPERMOTARD RR ALU 50 2T LC AM6
FANTIC CABALLERO 50 2T LC AM6
HM CR E DERAPAGE 50 2T LC AM6
HM CRE SIX Comp. 50 ie 2T LC 2013-> AM6
HM DERAPAGE RR 11 50 2T LC AM6
HUSQVARNA CH RACING 50 2T LC AM6
MALAGUTI XSM - XTM 50 2T LC AM6
MBK X-LIMIT 50 2T LC AM6
MBK X-POWER 50 2T LC AM6
PEUGEOT XPS 50 2T LC AM6
PEUGEOT XR6 50 2T LC AM6
PEUGEOT XR7 50 2T LC AM6
RIEJU RS2 50 2T LC AM6
SHERCO HRD 50 2T LC AM6
YAMAHA DT 50 R 50 2T LC euro 2 AM6
YAMAHA DT 50 X 50 2T LC euro 2 AM6
YAMAHA TZR 50 2T LC AM6
Code: 9921450
The Product may be reserved exclusively for competitions in places specially designated for such purposes according to the provisions of the competent sports authorities. We decline all responsibility for improper use.
FOR INFORMATION DO NOT HESITATE TO CONTACT
Billaricambi staff
