Stage 2 Performance Kit 4T; CSC Go!, 139QMB
Free returns on all eligible orders
You have 30 days to request a return. All sale items are final sale.
Stage 2 Performance Kit 4T; CSC Go!, 139QMB
Takes your 50cc 139QMB to 72cc
Kit includes Skus:
0500-1071 SCOOTERWORKS LOW MOUNT EXHAUST; 139QMB
1100-1439 BLUE LINE BIG BORE KIT W/ HEAD 4T (72CC, 64MM VALVES); QMB13
1200-1051 6g NCY ROLLERS (16X13); 139QMB, TAO TAO, CSC GO.
1100-1361 BLUE LINE CARBURETOR (CVK,19MM); 139QMB
0900-1005 NCY PERFORMANCE CDI (AC, 6 PIN); GY6, 139QMB
1300-1110 PERFORMANCE FOAM POD AIR FILTER 38MM
Jetkh1 95 JET (KEIHIN PB STYLE CARBURETORS); GENUINE
1100-1256 NCY EGR BLOCK-OFF PLATE; GY6
0500-1008 NCY EXHAUST GASKET (STEEL); GY6
1200-1053 1000 rpm NCY COMPRESSION SPRING (PERFORMANCE); 139QMB
1200-1056 NCY PRESSURE PLATE; 139QMB
1200-1161 NCY, DRIVE FACE ASSEMBLY (ALUMINUM); 139QMB
1200-1050 NCY PULLEY (GOLDEN); 139QMB
Not legal for use in California on pollution controlled vehicles. Check local laws before installing.
This product is not intended for use on public roads or land.
Shipping information
Orders are prepared as quickly as possible. Delivery times and shipping costs are calculated at checkout based on the destination and items ordered.
Returns & warranty
Please verify fitment and part number before ordering. Contact Thrifty Scooters promptly if an item arrives damaged or incorrect.