Vehicle Fitment
| Make | Model | Year |
|---|---|---|
| Honda | Grom 125 | 2014-2017 |
Product Details
Big Bore 4V Cylinder Head Kit by KOSO®. This complete 170cc Big Bore kit with 4V Cylinder Head kit is the perfect add-on for all horsepower enthusiast looking for performance! All parts are made from high-quality components for reliability and durability that allow you to put your mind at ease and ride with confidence!
Notes
- Require the use of Iridium spark plug: NGK‑ER9EHIX or Denso # IY27, IY29 or IY31
- This is an aftermarket part built for racing purposes only. KOSO is not responsible for any damages caused to the parts, vehicle, or to yourself and others. Engine parts are not under warranty nor is collateral damage or cost of labor, in cases of malfunction
- This is a Race Only product that is to be used solely for competition. It cannot be used on vehicles that are operated on public streets, roads or highways. Its use is limited to closed-course and open-course racing that is formally sanctioned by a recognized racing organization. Any other use, including recreational off-road use, could be in violation of local, state and federal laws. Shipping Restriction: CA, NY, ME
Specifications
| Cylinder displacement: 169.2 CC |
| Cylinder material: Aluminum / Ceramic coated |
| Piston size: 61 mm |
| Piston type: Forged |
| Compression ratio: 11.5:1 |
| Cylinder Height: 64.2mm |
| Gasket Thickness Upper: 0.25mm |
| Bottom: 0.5mm |
| Piston Compression Height: 19.5mm |
| Volume: 169.21CC |
| Squish: 1mm |
| Cylinder Head Titration: 13.4CC |
| Compression Ratio: 12.3:1 |
| Valve Clearance / Tappet Clearance IN: 0.10mm |
| EX: 0.17mm |
| Camshaft: 260 degree |
| Torque: 1.71 |
| Horsepower: 26.26 (Measured without Air Filter & no Noise Reduction Plug) |
Includes
- 170 cc Ceramic Coated Cylinder
- Forged Piston
- Performance Camshaft
- Bearing
- Rocker Arms
- 4 Valve Cylinder Head
- Intake Manifold
- Gaskets
Features
- Expertly crafted from the highest grade materials
- Exquisite workmanship and solid design
- Will provide honest value and rugged dependability
KOSO® is synonym of quality and performance for more than 30 years! Designing and manufacturing high-quality products, KOSO are well-known in the motorcycle, snowmobile, ATV and scooter industries. In fact, its good reputation for reliability and innovation capability made KOSO company a source for many major OEM companies. Whether KOSO manufactures a product under private label, OEM or aftermarket product, the quality always remains a priority. Bringing new technologies and innovative product is also part of KOSO’s philosophy as well as constantly pushing the limit further.
Brand:
Part Number:
MB623003
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