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Crankshaft


Crankshaft & Piston Attribute:
1.    Crankshaft Assembly
2.    Piston
3.    Piston Assembly

4.    Piston Rings
5.    Woodruff Keys 4x13.8
6.    Wrist Pin
7.    Wrist Pin Clips


The piston rings placement on the piston is crucial to proper compression and oil distribution.


•    Top Ring if it has writing usually will have a 1 and or a single letter that needs face visible top. The top ring is usually polished as well.

•    2nd Ring if it has writing will usually have 2 and or a letter or pair of letters that needs also face visible top.

•    Expanding Ring is the wavy ring on the inside with the two thin flat smooth Side Rings on the top and bottom. They make a group called the Oil Rings.

•    Gapping the rings in reference to the other rings.  The Mercede's Benz Logo helps to remind of their 120-degree rotational offsets.


Scooter cam chains, cam gears, camshafts, CVT covers, crankcases, cylinder heads, cylinders, driven pulleys, kickstarts, oil pumps, pistons, starter clutches, tensioners, transmissions, valves, and variators.

Brand: G Model: 1100-1190
Description: GY6 Crankshaft 57.8mm Standard Stroker assembly for GY6 125/150cc 4-stroke 152QMI / 157QMJ engines.Specifications: Include the following Crankshaft stroker.•    1x Crankshaft L: 285mm / Stroke L: 57.8mm•    1x Piston Wrist Pin Slot ID: 15mm•    1x Flywheel ..
$52.00
Ex Tax:$52.00
Brand: G Model: 151-122
Description: G- Woodruff Key for 49cc-50cc 4-stroke 139QMB engines. Standard clutch-side woodruff key for QMB engines. Just wedge for positioning for the alternator rotor side of the crankshaft. Sold individually. Specifications: Include the following woodruff key (1 piece).•    Lengt..
$1.99
Ex Tax:$1.99
Brand: G Model: 164-112
Description: GY6 woodruff key for 125cc and 150cc GY6 4-stroke engines. Standard clutch-side woodruff key for GY6 engines. Just wedge for positioning for the alternator rotor side of the crankshaft. Sold individually. Specifications:Include the following woodruff key (1 piece).•    Le..
$1.99
Ex Tax:$1.99
Hoca Crankshaft +2.5mm Stroker (GY6) Hoca Crankshaft +2.5mm Stroker (GY6)
Non-Stock
Brand: Hoca Model: 169-47
Description: Hoca Crankshaft 57.8mm +2.5mm Stroker Crank increases standard stroke by 2.5mm more displacement equals more power for GY6 125/150cc+ 4 Stroke!Specifications:Include the following Crankshaft stroker.•    1x Crankshaft L: 285mm / Stroke L: 57.8mm +2.5mm (2500-micron) = 60.3mm•&..
$172.00
Ex Tax:$172.00
Brand: Naraku Model: NK101.70
Description: Naraku Crankshaft Needle Bearing 17x12x13mm for Honda DIO and Honda Elite. OEM Replacement Naraku Crankshaft Needle Bearing 17mm (OD) x 12mm (ID) x 13mm (W) and cage assemblies for the crankshaft and piston pins for Honda Dio (AF16-AF18E) engines. OEM quality small end bearing (17x12x13..
$15.95
Ex Tax:$15.95
Brand: Naraku Model: NK102.03
Description: Naraku Oil Seal Set for 139QMB 49/50cc 4-stroke engines. Complete set of quality crank oil seals from Naraku. Set contains all the important oil seals found in the engine. A must for engine overhauls. Purchasing individual shaft seals is usually more expensive, and when working on the e..
$14.95
Ex Tax:$14.95
Brand: Naraku Model: NK102.01
Description: Naraku Oil Seal Set for Kymco, Sym 49/50cc scooters with horizontal cylinders. Set contains all the important oil seals found in the engine. A must for engine overhauls. Purchasing individual shaft seals is usually more expensive, and when working on the engine or the gearbox, seals sho..
$14.95
Ex Tax:$14.95
Brand: Naraku Model: NK102.07
Description: Naraku GY6 Oil Seal Set, complete set of 4. This is a complete set of genuine Naraku oil seal set for the GY6 4-stroke 125-150cc Kymco engines (scooters), and most Chinese imported vehicles 125/150cc (scooters, quads, and buggies). Set includes 4-piece oil seals.Specifications:Includes ..
$14.95
Ex Tax:$14.95
Brand: NCY Model: 1100-1379
Description: NCY Piston Rings made by Prima for your Genuine Buddy 50cc,  Genuine RoughHouse 50cc, and Minarelli scooter. Will fit NCY Prima Cylinder Kit: 47mm, 10mm Pin, 72cc.Specifications:•    Piston Rings Set 47mm •    Fits Buddy 50•    Fits Mina..
$28.00
Ex Tax:$28.00
Brand: Polini Model: 146-65
Description: Polini Crankshaft for Horizontal Minarelli Engines. This Polini full circle crankshaft has been balanced and features an oversized, strengthened connecting rod, making it suitable as both a stock replacement crankshaft and/or a racing crankshaft.NOTE: Does not include crank bearing..
$134.00
Ex Tax:$134.00
Brand: Ruima Model: 1100-1015
Description: Ruima high-performance stroker crank for GY6, Buddy 150, and Blur 150. Increases standard 57.8mm stroke by 2.5mm. More displacement equals more power!Specifications:Include the following Crankshaft stroker.•    1x Crankshaft L: 285mm / Stroke L: 57.8mm +2.5mm (2500-micron..
$214.00
Ex Tax:$214.00
SSP-G Crankshaft 44mm Performance Stroker 16T (139QMB) SSP-G Crankshaft 44mm Performance Stroker 16T (139QMB)
4 - 10 Days
Brand: SSP-G Model: 169-239
Description: SSP-G Crankshaft 44mm Performance Stroker 16-Teeth (139QMB) increases standard stroke by 2.5mm-more displacement equals more power! When used in conjunction with a 52.4mm cylinder big bore, total displacement cranks out at a whopping 94.9cc! The crank is pre-pressed with main bearings a..
$189.95
Ex Tax:$189.95
Taida Big Bore Combo 62mm 174.5cc LC 2V w/Forged Piston Fit 54mm (GY6) Taida Big Bore Combo 62mm 174.5cc LC 2V w/Forged Piston Fit 54mm (GY6)
30 - 45 Days
Brand: Taida Model: GY6-090-2V54-175-LC
Description: Liquid Cooled Taida Cast-Iron Cylinder 62mm 174.5cc with Forged Aluminum Piston offers better durability and reduced friction for 54mm stud GY6 125/150cc + engines. The cylinder bore is 62mm. Taida Big Bore Combo 62mm 174.5cc 2V w/Forged Piston Fit 54mm including the following parts Tai..
$738.52
Ex Tax:$738.52
Brand: Taida Model: GY6-090-2V54-180
Description: High-Quality Taida Ceramic Cylinder 63mm 180cc with Forged Aluminum Piston offers better durability and reduced friction for GY6 125/150cc + engines. The forged piston will offer better power and the ceramic cylinder with more heat dissipation will help to avoid overheating. The ceramic..
$752.61
Ex Tax:$752.61
Taida Big Bore Combo 63mm 180cc C 4V w/Forged Piston Fit 54mm (GY6) Taida Big Bore Combo 63mm 180cc C 4V w/Forged Piston Fit 54mm (GY6)
30 - 45 Days
Brand: Taida Model: GY6-090-4V54-180
Description: High-Quality Taida Ceramic Cylinder 63mm 180cc with Forged Aluminum Piston offers better durability and reduced friction for GY6 125/150cc + engines. The forged piston will offer better power and the ceramic cylinder with more heat dissipation will help to avoid overheating. The ceramic..
$816.00
Ex Tax:$816.00
Taida Big Bore Combo 63mm 205cc C 2V w/HC Forge Piston Fit 54mm (GY6) Taida Big Bore Combo 63mm 205cc C 2V w/HC Forge Piston Fit 54mm (GY6)
30 - 45 Days
Brand: Taida Model: GY6-090-2V54-205
Description: High-Quality Taida Ceramic Cylinder 63mm 205cc with High-Compression Forged Piston offers better durability, power, and reduced friction for GY6 125/150cc + engines. The high compression forged piston will offer better power and the ceramic cylinder with more heat dissipation will help ..
$978.51
Ex Tax:$978.51
Brand: Taida Model: GY6-090-2V54-205-LC
Description: High-Quality Liquid Cooled Taida Cast-Iron Cylinder 63mm 205cc with Cast Aluminum Piston for GY6 125/150cc + engines. The cylinder bore is 63mm. Taida Big Bore Combo 63mm 205cc Liquid-Cool 2V w/Cast Piston Fit 54mm including the following parts Taida 63mm (205cc) cylinder kit Liquid Coo..
$887.00
Ex Tax:$887.00
Taida Big Bore Combo 67mm 232cc C 2V w/Forged Piston Fit 57mm (GY6) Taida Big Bore Combo 67mm 232cc C 2V w/Forged Piston Fit 57mm (GY6)
30 - 45 Days
Brand: Taida Model: GY6-090-2V57-232
Description: High-Quality Taida Ceramic Cylinder 67mm 232cc with Forged Aluminum Piston offers better durability and reduced friction for GY6 205/232cc + engines. The forged piston will offer better power and the ceramic cylinder with more heat dissipation will help to avoid overheating. The ceramic..
$998.94
Ex Tax:$998.94
Taida Big Bore Combo 67mm 232cc C 4V w/Forged Piston Fit 57mm (GY6) Taida Big Bore Combo 67mm 232cc C 4V w/Forged Piston Fit 57mm (GY6)
30 - 45 Days
Brand: Taida Model: GY6-090-4V57-232-4V
Description: High-Quality Taida Ceramic Cylinder 67mm 232cc with Forged Aluminum Piston offers better durability and reduced friction for GY6 125/150cc + engines. The forged piston will offer better power and the ceramic cylinder with more heat dissipation will help to avoid overheating. The ceramic..
$1,075.00
Ex Tax:$1,075.00
Taida Big Bore Combo 67mm 232cc LCC 2V w/Forged Piston Fit 57mm (GY6) Taida Big Bore Combo 67mm 232cc LCC 2V w/Forged Piston Fit 57mm (GY6)
30 - 45 Days
Brand: Taida Model: GY6-090-2V57-232-LC
Description: High-Quality Liquid Cooled Taida Ceramic Cylinder 67mm 232cc with Forged Aluminum Piston offers better durability and reduced friction for GY6 125/150cc + engines. The forged piston will offer better power and the ceramic cylinder with more heat dissipation will help to avoid overheatin..
$1,061.54
Ex Tax:$1,061.54
Taida Big Bore Combo 67mm 232cc LCC 4V w/Forged Piston Fit 57mm (GY6) Taida Big Bore Combo 67mm 232cc LCC 4V w/Forged Piston Fit 57mm (GY6)
30 - 45 Days
Brand: Taida Model: GY6-090-4V57-232-LC-4V
Description: High-Quality Liquid Cooled Taida Ceramic Cylinder 67mm 232cc with 4-Valves Forged Piston offers better durability and reduced friction for 57mm B-Block GY6 engines. The ceramic cylinder coating offers better durability with more heat dissipation and can stand higher temperatures. The cy..
$1,333.00
Ex Tax:$1,333.00
Taida Crankshaft 41.4 Standard Stroker (Honda Dio)
30 - 45 Days
Brand: Taida Model: DIO50-030
Description: High-Quality Taida Crankshaft 41.4 standard stroker for Honda Dio (AF16-AF18E) engines. Crankshaft assembly replacement for Honda Dio. We recommend this crankshaft with the Taida Cylinder 50mm 81cc Big Bore Kit Part #DIO-01050-A.NOTE: THIS IS NOT FOR EARLY MODEL (PRE-1994) AF05E Engines..
$66.95
Ex Tax:$66.95
Taida Crankshaft 49.6mm Stroker (Honda Dio)
30 - 45 Days
Brand: Taida Model: DIO90-030
Description: High-Quality Taida Crankshaft 49.6 for Honda Dio (AF16-AF18E) engines. We recommend this crankshaft with the Taida Cylinder 50mm 97cc Big Bore Kit Part # DIO-01050-B.NOTE: THIS IS NOT FOR EARLY MODEL (PRE-1994) AF05E Engines.Boring and machining may require.Specifications:• &n..
$98.00
Ex Tax:$98.00
Brand: Taida Model: DIO90-030200
Description: High-Quality Taida Crankshaft 51.6 for Honda Dio (AF16-AF18E) engines. This crankshaft allows you to go up to 111cc with Taida Cylinder 52.5mm Big Bore Kit Part #DIO-01052-B.NOTE: THIS IS NOT FOR EARLY MODEL (PRE-1994) AF05E Engines.Boring and machining may require.Specifications:• ..
$132.86
Ex Tax:$132.86
Brand: Taida Model: DIO90-030300
Description: High-Quality Taida Crankshaft 52.6 for Honda Dio (AF16-AF18E) engines. This crankshaft allows you to go up to 130cc with Taida Cylinder 56mm Big Bore Kits (Part #DIO-01056).NOTE: THIS IS NOT FOR EARLY MODEL (PRE-1994) AF05E Engines.Boring and machining may require.Specifications:• ..
$148.00
Ex Tax:$148.00
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