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G- Valve Exhaust 2V 16 (139QMB)

Brand: G Part #: 151-80

Description: Performance Valve Exhaust 2V 16mm intake valve. This Valve Exhaust 2V 16 fits cylinder head 39mm 2V for 139QMB 49/50cc engines (scooters, quads, and buggies).NOTE: This valve is ONLY for 64mm valves length cylinder head 39mm 2V. Use in conjunction with a 64mm&nb..

$7.99

G- Valve Exhaust 2V 16 Fit 69mm (139QMB)

G- Valve Exhaust 2V 16 Fit 69mm (139QMB)

Brand: G Part #: 151-246

Description: Performance Valve Exhaust 2V 16mm intake valve. This Valve Set 2V 16 fits cylinder head 39mm 2V for 139QMB 49/50cc engines (scooters, quads, and buggies).NOTE: This valve set is ONLY for 69mm valves length cylinder head 39mm 2V. Use in conjunction with a 69mm&nb..

$7.99

G- Valve Intake 2V 18.4 (139QMB)

Brand: G Part #: 151-79

Description: Performance Valve Intake 2V 18.4mm intake valve. This Valve Intake 2V 18.4 fits cylinder head 39mm 2V for 139QMB 49/50cc engines (scooters, quads, and buggies).NOTE: This valve set is ONLY for 64mm valves length cylinder head 39mm 2V. Use in conjunction with a 6..

$7.99

G- Valve Intake 2V 18.4 Fit 69mm (139QMB)

G- Valve Intake 2V 18.4 Fit 69mm (139QMB)

Brand: G Part #: 151-245

Description: Performance Valve Intake 2V 18.4mm Fit 69mm. This Valve Set 2V 18.4 fits cylinder head 39mm 2V for 139QMB 49/50cc engines (scooters, quads, and buggies).NOTE: This valve is ONLY for 69mm valves length cylinder head 39mm 2V. Use in conjunction with a 69mm ro..

$7.99

G- Valve Set 2V 18.4/16 (139QMB)

Brand: G Part #: 151-79-80

Description: Performance Valve Set 2V 18.4mm intake / 16mm exhaust valve. This Valve Set 2V 18.4/16 fits cylinder head 39mm 2V for 139QMB 49/50cc engines (scooters, quads, and buggies). NOTE: This valve set is ONLY for 64mm valves length cylinder head 39mm 2V. Use in conjunction with ..

$15.95

G- Valve Set 2V 18.4/16 Fit 69mm (139QMB)

G- Valve Set 2V 18.4/16 Fit 69mm (139QMB)

Brand: G Part #: 151-245-6

Description: Performance Valve Set 2V 18.4mm intake / 16mm exhaust valve. This Valve Set 2V 18.4/16 fits cylinder head 39mm 2V for 139QMB 49/50cc engines (scooters, quads, and buggies).NOTE: This valve set is ONLY for 69mm valves length cylinder head 39mm 2V. Use in conjunction with a..

$15.95

G- Valve Set 2V 18.4/16 Kit (139QMB)

Brand: G Part #: 151-239

Description: Valve Set 2V 18.4/16 Kit for upgrade 139QMB 49/50cc engines (scooters, quads, and buggies). NOTE: This valve set is ONLY for 64mm valves length cylinder head 39mm 2V. Use in conjunction with a 64mm rocker arm 2V ONLY (will not fit 69mm). For 69mm valve leng..

$24.00

G- Valve Set 2V 18.4/16 Kit Fit 69mm (139QMB)

G- Valve Set 2V 18.4/16 Kit Fit 69mm (139QMB)

Brand: G Part #: 151-262

Description: Valve Set 2V 18.4/16 Kit Fit 69mm for upgrade 139QMB 49/50cc engines (scooters, quads, and buggies). NOTE: This valve set is ONLY for 69mm valves length cylinder head 39mm 2V. Use in conjunction with a 69mm rocker arm 2V ONLY (will not fit 64mm). For 64mm valve lengt..

$25.95

Hoca Valve Set 2V 21.5/19 (139QMB)

Non-Stock

Brand: Hoca Part #: 169-381

Description: Performance Hoca Valve Set 2V larger 21.5mm intake / 19mm exhaust valve. This Hoca Valve Set 2V 21.5/19 fits cylinder head 39mm 2V for 139QMB 81-88cc engines (scooters, quads, and buggies). NOTE: Use in conjunction with a 64mm cylinder head 2V and 64mm rockerarm 2V O..

$22.50

Koso Camshaft A12 2V (GY6)

Non-Stock

Brand: Koso Part #: KOSO-A12

Description: High-Performance Koso Camshaft A12 2-Valve designed specifically for the GY6 Engine. This cam is ideal for increasing low-end power. With its increased leading slope and later intake valve opening makes this the perfect upgrade to go along with your larger displacement cylinder, b..

$39.95

Naraku Camshaft A14 2V Performance (GY6)

Naraku Camshaft A14 2V Performance (GY6)

Brand: Naraku Part #: NK500.04

Description: Naraku Camshaft A14 2-Valve Performance designed specifically for the GY6 125/150cc+ Engine. This cam is ideal for increasing low-end power. With its increased leading slope and later intake valve opening makes this the perfect upgrade to go along with your larger displacemen..

$92.79

SSP-G Camshaft A12 2V (GY6)

ETA 4 - 10 Days

Brand: SSP-G Part #: 169-271

Description: High-Performance SSP-G Camshaft A12 2-Valve designed specifically for the GY6 Engine. This cam is ideal for increasing low-end power. With its increased leading slope and later intake valve opening makes this the perfect upgrade to go along with your larger displacement cylinder, ..

$43.90

Taida Valve Exhaust 2V 23 (GY6)

Brand: Taida Part #: GY6-2V-23

Description: Performance Taida Valve Exhaust 2V 23mm. This Taida Valve Exhaust 2V 23mm fits Taida Cylinder Head 61mm 2V for GY6 171cc engines (scooters, quads, and buggies). Also available in complete Taida Valve Set 2V 28/23 (Part# GY6-2V-28-23).Specifications: Include the following Cylinder head e..

$29.99

Taida Valve Intake 2V 28 (GY6)

Brand: Taida Part #: GY6-2V-28

Description: Performance Taida Valve Intake 2V 28mm. This Taida Valve Intake 2V 28mm fits Taida Cylinder Head 61mm 2V for GY6 171cc engines (scooters, quads, and buggies). Also available in complete Taida Valve Set 2V 28/23 (Part# GY6-2V-28-23).Specifications: Include the following Cylinder hea..

$29.99

Taida Valve Set 2V 28/23 (GY6)

ETA 45 - 60 Days

Brand: Taida Part #: GY6-2V-28-23

Description: Performance Taida Valve Set 2V larger 28/23 intake/exhaust valves. This Taida Valve Set 2V 28/23 fits Taida Cylinder Head 61mm 2V for GY6 171cc engines (scooters, quads, and buggies). To increase performance, we suggest a performance camshaft.Specifications: Include the following Valve ..

$54.35

Taida Valve Set 2V 30.5/26.5 (GY6)

ETA 45 - 60 Days

Brand: Taida Part #: GY6-2V-30.5-26.5

Description: Performance Taida Valve Set 2V larger 30.5/26.5 intake/exhaust valves. This Taida Valve Set 2V 30.5/26.5 fits Taida Cylinder Head [63mm-67mm] 2V for GY6 180cc-232cc engines (scooters, quads, and buggies). To increase performance, we suggest a performance camshaft.Specifications: Include..

$54.30