

Hero image 0 of Koso 170cc 61mm Big Bore Kit - Honda Grom & Monkey, 0 of 5
Koso 170cc 61mm Big Bore Kit - Honda Grom & Monkey
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Key item features
- Want to unleash all the power your Honda Grom can handle? Koso's 170cc Big Bore Kit (MB623002) is the perfect addition for you! The kit includes a ceramic coated cylinder, 61mm forged piston, rings, pin, gasket kit and banjo bolts. Its compression ratio of 11.5 to 1 will allow you to still use premium pump gas and keep the reliability of a stock motor. Made from the best components available on the market, Koso's 170cc big bore kit will amaze you! Also compatible with the Honda Monkey 125cc.***P
- lease Note: You may need to modify your engine case to accommodate the larger cylinder****Please note: Compatible with 2014-2021 Honda Grom Cylinder Displacement: 169.2ccCylinder Material: Aluminum/Ceramic CoatedCylinder Overall Height: 90.5mmPiston Diameter: 61mmPiston Type: ForgedCompression Ratio: 11.5 to 1
Specs
- Vehicle makeHonda
- Vehicle modelGrom, Monkey
- Vehicle year2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021
- Vehicle fitment typeSpecific
- MaterialAluminum, Ceramic Coated
- Size61 mm
Current price is USD$408.99
Price when purchased online
- Free shipping
Free 30-day returns
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Columbus, 43215
Arrives by Mon, Feb 23
|Sold and shipped by ScootsUSA-Super Fast Shipping
4.315789473684211 stars out of 5, based on 19 seller reviews(4.3)19 seller reviews
Free 30-day returns
Compare with similar items
| Product | Viewing this itemKoso 170cc 61mm Big Bore Kit - Honda Grom & Monkey ![]() $408.99 current price $408.99 | Big Bore Cylinder Kit 67 mm, Honda 07-2015 CRF230 to 235 cc ![]() $302.75 current price $302.75 | Clarke Fuel Tank (NO CA) 4.3 Gallon Natural for Honda XR650R 2000-2007 ![]() $240.73 current price $240.73 | Renthal Front Sprocket 15 Tooth for Honda TRX 450R 2004-2009 ![]() $38.48 current price $38.48 | Honda OEM 17 - 20 GROM 125 THROTTLE CABLE 'A' 17910-K26-B01 ![]() $13.49 current price $13.49 | Clarke Fuel Tank (NO CA) 3.8 Gallon White for Honda XR400R 1998-2004 ![]() $259.69 current price $259.69 | munirater Carburetor Bystarter Repair Kit Replacement for Honda Ruckus 50 Metropolitan 50 NPS50 CHF50 2006-2019 ![]() $17.49 current price $17.49 | FMF Gold Series Nickel Plated Fatty Pipe for '00-01 Honda CR125R (020375) ![]() $296.57 current price $296.57 | ASV C5 Sport Shorty Brake Lever Black for Honda Grom 125 2014-2015 ![]() $202.06 current price $202.06 |
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| Vehicle make | HondaKoso 170cc 61mm Big Bore Kit - Honda Grom & Monkey | HondaBig Bore Cylinder Kit 67 mm, Honda 07-2015 CRF230 to 235 cc | HondaClarke Fuel Tank (NO CA) 4.3 Gallon Natural for Honda XR650R 2000-2007 | HondaRenthal Front Sprocket 15 Tooth for Honda TRX 450R 2004-2009 | HondaHonda OEM 17 - 20 GROM 125 THROTTLE CABLE 'A' 17910-K26-B01 | HondaClarke Fuel Tank (NO CA) 3.8 Gallon White for Honda XR400R 1998-2004 | Hondamunirater Carburetor Bystarter Repair Kit Replacement for Honda Ruckus 50 Metropolitan 50 NPS50 CHF50 2006-2019 | HondaFMF Gold Series Nickel Plated Fatty Pipe for '00-01 Honda CR125R (020375) | HondaASV C5 Sport Shorty Brake Lever Black for Honda Grom 125 2014-2015 |
|---|---|---|---|---|---|---|---|---|---|
| Vehicle model | GromKoso 170cc 61mm Big Bore Kit - Honda Grom & Monkey | P400210100054Big Bore Cylinder Kit 67 mm, Honda 07-2015 CRF230 to 235 cc | XR650RClarke Fuel Tank (NO CA) 4.3 Gallon Natural for Honda XR650R 2000-2007 | TRX450RRenthal Front Sprocket 15 Tooth for Honda TRX 450R 2004-2009 | -Honda OEM 17 - 20 GROM 125 THROTTLE CABLE 'A' 17910-K26-B01 | XR400RClarke Fuel Tank (NO CA) 3.8 Gallon White for Honda XR400R 1998-2004 | Ruckus 50munirater Carburetor Bystarter Repair Kit Replacement for Honda Ruckus 50 Metropolitan 50 NPS50 CHF50 2006-2019 | -FMF Gold Series Nickel Plated Fatty Pipe for '00-01 Honda CR125R (020375) | Grom 125ASV C5 Sport Shorty Brake Lever Black for Honda Grom 125 2014-2015 |
| Vehicle year | 2014Koso 170cc 61mm Big Bore Kit - Honda Grom & Monkey | 2007Big Bore Cylinder Kit 67 mm, Honda 07-2015 CRF230 to 235 cc | 2000Clarke Fuel Tank (NO CA) 4.3 Gallon Natural for Honda XR650R 2000-2007 | 2004Renthal Front Sprocket 15 Tooth for Honda TRX 450R 2004-2009 | 2017Honda OEM 17 - 20 GROM 125 THROTTLE CABLE 'A' 17910-K26-B01 | 1998Clarke Fuel Tank (NO CA) 3.8 Gallon White for Honda XR400R 1998-2004 | 2006munirater Carburetor Bystarter Repair Kit Replacement for Honda Ruckus 50 Metropolitan 50 NPS50 CHF50 2006-2019 | -FMF Gold Series Nickel Plated Fatty Pipe for '00-01 Honda CR125R (020375) | 2014ASV C5 Sport Shorty Brake Lever Black for Honda Grom 125 2014-2015 |
| Vehicle fitment type | SpecificKoso 170cc 61mm Big Bore Kit - Honda Grom & Monkey | SpecificBig Bore Cylinder Kit 67 mm, Honda 07-2015 CRF230 to 235 cc | SpecificClarke Fuel Tank (NO CA) 4.3 Gallon Natural for Honda XR650R 2000-2007 | SpecificRenthal Front Sprocket 15 Tooth for Honda TRX 450R 2004-2009 | SpecificHonda OEM 17 - 20 GROM 125 THROTTLE CABLE 'A' 17910-K26-B01 | SpecificClarke Fuel Tank (NO CA) 3.8 Gallon White for Honda XR400R 1998-2004 | Specificmunirater Carburetor Bystarter Repair Kit Replacement for Honda Ruckus 50 Metropolitan 50 NPS50 CHF50 2006-2019 | SpecificFMF Gold Series Nickel Plated Fatty Pipe for '00-01 Honda CR125R (020375) | SpecificASV C5 Sport Shorty Brake Lever Black for Honda Grom 125 2014-2015 |
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About this item
Product details
Want to unleash all the power your Fits Honda Grom can handle? Koso's 170cc Big Bore Kit (MB623002) is the perfect addition for you! The kit includes a ceramic coated cylinder, 61mm forged piston, rings, pin, gasket kit and banjo bolts. Its compression ratio of 11.5 to 1 will allow you to still use premium pump gas and keep the reliability of a stock motor. Made from the best components available on the market, Koso's 170cc big bore kit will amaze you! Also compatible with the Fits Honda Monkey 125cc.***Please Note: You may need to modify your engine case to accommodate the larger cylinder****Please note: Compatible with 2014-2021 Fits Honda Grom Cylinder Displacement: 169.2ccCylinder Material: Aluminum/Ceramic CoatedCylinder Overall Height: 90.5mmPiston Diameter: 61mmPiston Type: ForgedCompression Ratio: 11.5 to 1
- Want to unleash all the power your Honda Grom can handle? Koso's 170cc Big Bore Kit (MB623002) is the perfect addition for you! The kit includes a ceramic coated cylinder, 61mm forged piston, rings, pin, gasket kit and banjo bolts. Its compression ratio of 11.5 to 1 will allow you to still use premium pump gas and keep the reliability of a stock motor. Made from the best components available on the market, Koso's 170cc big bore kit will amaze you! Also compatible with the Honda Monkey 125cc.***P
- lease Note: You may need to modify your engine case to accommodate the larger cylinder****Please note: Compatible with 2014-2021 Honda Grom Cylinder Displacement: 169.2ccCylinder Material: Aluminum/Ceramic CoatedCylinder Overall Height: 90.5mmPiston Diameter: 61mmPiston Type: ForgedCompression Ratio: 11.5 to 1
info:
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Specifications
Vehicle make
Honda
Vehicle model
Grom, Monkey
Vehicle year
2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021
Vehicle fitment type
Specific
Warranty
Warranty information
Please be aware that the warranty terms on items offered for sale by third party Marketplace sellers may differ from those displayed in this section (if any). To confirm warranty terms on an item offered for sale by a third party Marketplace seller, please use the 'Contact seller' feature on the third party Marketplace seller's information page and request the item's warranty terms prior to purchase.
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