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Naraku 52.4mm Performance Cylinder & Head Kit
- Upgrades to 89.3cc
- Cylinder Bore: 52.4mm
- Cylinder Sleeve Outer Diameter: 54.4mm
- Wrist Pin Diameter: 13mm
- Total Piston Height: 36.3mm
- Compression Height (from center of wrist pin hole to top edge of piston): 20mm
- Non-emissions style head
- Intake valve: 23mm
- Exhaust valve: 20mm
- Intake Port Diameter: 20.8mm
- Exhaust Port Diameter: 18.7mm
- Uses Short 64mm Valve Stems
$242.99 Add to cart -
SSP-G Ruckus Stainless Steel Exhaust – 16mm Header
- Head Pipe Bolt Hole Spacing: 45mm
- Head Pipe Inner Diameter: 16mm
- Muffler Overall Length: 17 inches
- Includes Mounting Kit with Premium Gasket
- Does Not Fit Metropolitan
$237.99 Add to cart -
Ban Jing +3.0mm GY6 Stroker Crank and Spacer Kit
- Overall Length: 285mm
- Flywheel Thread Size: M12x1.25
- Flywheel Thread Length: 16mm
- Drive End Thread Size: M12x1.25
- Drive End Thread Length: 16mm
- Inner Diameter (piston pin hole): 15mm
- Number of Splines: 19
- Main bearings included
- Cylinder Spacer Inner Diameter: 65mm
- Spacer For B-case engines only (57mm cylinder stud spacing)
- All Sales on Performance Items Final
$232.99 Add to cart -
Polini Team 4 Exhaust for Vertical Minarelli
- Head Pipe Bolt Hole Spacing: 48mm
- Head Pipe Inner Diameter with Restrictor Removed: 25mm
- Includes Mounting Bracket, Hardware and Exhaust Gasket
$232.99 Add to cart -
Hoca 50cc 2-stroke Performance Exhaust
- Overall Length: 29 inches
- Exhaust Manifold Bolt Hole Spacing: 52mm
- 2 Bolt Frame Mount
- Nickel Finished Metal
- Carbon Fiber Silencer
$232.99 Add to cart -
Polini Sport Exhaust for Vespa PX 125/150cc
- For Use With Stock or 177cc Cylinders
$230.99 Add to cart -
SSP-G 52mm QMB139 Big Bore Cylinder and Head Kit
- Upgrades to 88cc
- Cylinder Bore: 52mm
- Cylinder Sleeve Outer Diameter: 54.9mm
- Intake Valve Diameter: 23.5mm
- Intake Port Diameter: 21.5mm
- Exhaust Valve Diameter: 20.1mm
- Exhaust Port Diameter: 19mm
- Valve Length: 62.3mm (compatible with 64mm Short Valve Style Heads)
- Does not come with camshaft, please see Related Items
- Made in Taiwan
$227.99 Read more -
Ban Jing GY6 Transmission Kit
- Outer Diameter of Variator: 116mm
- Number of Splines On Drive Face: 19
- Weight of Forged Drive Face: 154g
- Number of Splines on Clutch Bell: 19
- Adjustable Drive Sheave
- 1500RPM Torque (Contra) Spring
- 1500RPM Springs in Clutch
- 20×12 Roller Weights in 12g
- Made in Taiwan
$227.99 Add to cart -
Dr. Pulley QMB139 HiT Clutch
- Inner Diameter (bell): 107mm
- Overall Height (bell): 34mm
- Number of Splines (clutch bell): 22
- 60 Degree Pillow Springs
- Includes Assortment of Pillow Springs and Clutch Springs for fine tuning
$227.99 Read more -
Dr. Pulley Honda/Piaggio/Kymco HiT Clutch
- Inner Diameter (bell): 107mm
- Overall Height (bell): 34mm
- Number of Splines (clutch bell): 22
- 50 Degree Pillow Springs
- Includes 3 sets of Pillow Springs and 4 sets of Clutch Springs for fine tuning
$227.99 Add to cart -
Dr. Pulley Minarelli HiT Clutch
- Inner Diameter (bell): 105mm
- Overall Height (bell): 33mm
- Number of Splines (clutch bell): 16
- 50 Degree Pillow Springs
- Includes 3 sets of Pillow Springs and 6 sets of Clutch Springs for fine tuning
$227.99 Add to cart -
Athena 47.6mm A/C Piaggio Cylinder Kit
- Upgrades to 70cc
- Aluminum Construction with Nickel Carbide Plated Bore
- Cylinder Bore: 47.6mm
- Cylinder Sleeve Outer Diameter: 51.8mm
- Includes Carbon Fiber Reeds
$222.99 Add to cart -
Naraku QMB139 Super Transmission Kit
- Roller Weight Size: 16x13mm (6g)
- Variator Outer Diameter: 88mm
- Clutch Drum Number of Splines: 22
- Clutch Drum Spline Inner Diameter (peak to peak): 11.10mm
- Sliding Torque Spring Base Outer Diameter: 118mm
- Drive Face Number of Splines: 26
- Drive Face Spline Inner Diameter (peak to peak): 13mm
- Drive Face Outer Diameter: 113.7mm
$222.99 Read more -
SSP-G GY6 Performance Transmission Kit
- Clutch: 120mm Outer Diameter. 1000RPM Springs Installed.
- Torque (Contra) Spring: 1000RPM. Overall Length: 115mm (4.5 Inches.)
- Clutch Bell: 125mm Inner Diameter. 137mm Outer Diameter. 19 Splines.
- Variator: 115mm Outer Diameter. Includes 12g Roller Weights. 157g Drive Face.
- All Components Made in Taiwan!
$217.99 Add to cart -
GY6 Performance Alternator Kit
Includes:
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Magneto/stator super coil
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Lightened flywheel
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Turbo cooling fan
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White Plug: 3-pin, female
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2 Single Plugs
$212.99 Read more -
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Dr. Pulley Kymco 500 Variator Kit
- Includes Instructions
- Includes Slide Pieces
- Does Not Included Roller Weights
- Drive Face Outer Diameter (A): 150mm
- Boss Inner Diameter (C): 22mm
- Boss Outer Diameter (B): 28.9mm
- Ramp Plate Inner Diameter Valley to Valley (D): 25.1mm
- Ramp Plate Inner Diameter Peak to Peak (E): 23.2mm
$212.99 Add to cart