Wiseco Nylon Flexhone Brush 45-57mm - V-Twin Cylinder Bore Finishing Tool
About Wiseco
Wiseco has forged pistons in Mentor, Ohio since 1941, supplying everything from factory race teams to big-bore street builds. Forged construction is what lets a V-twin survive higher compression and more cylinder pressure than the stock cast piston was designed for.
The Wiseco Nylon Flexhone brush for 45-57mm bores is an essential tool for creating a superior plateau finish in V-twin cylinders after primary honing. Its abrasive-impregnated nylon bristles effectively remove microscopic peaks, ensuring optimal ring seating and engine longevity.
Why riders pick this
- Creates a superior plateau finish in V-twin cylinders
- Removes microscopic peaks without enlarging bore
- Ensures optimal piston ring seating and seal
- Safe for cast iron and plated cylinder bores
- Enhances engine longevity and performance
When rebuilding or refreshing a V-twin engine, the final honing process is critical for performance and reliability. This Wiseco Flexhone brush goes beyond traditional honing, specifically designed to refine the cylinder walls without enlarging the bore. By creating a smooth, plateau finish, it prepares the cylinder for optimal ring seal, reducing blow-by and maximizing power output.
Precision Finishing for Peak Performance
- Abrasive-impregnated nylon bristles create a superior plateau finish
- Removes microscopic peaks and scuffs left by primary honing
- Does not enlarge the cylinder bore, maintaining precise tolerances
- Safe for use on both cast iron and plated V-twin engine bores
- Contributes to better ring seating and extended engine life
The Edge in Engine Building
Achieving the perfect cylinder finish is a mark of a quality engine build. This Wiseco Flexhone brush provides that edge, ensuring that your piston rings seat quickly and effectively, which is vital for compression and oil control. It's a professional-grade tool that belongs in the arsenal of any serious V-twin mechanic or builder, compatible with both 2-cycle and 4-cycle applications.
Specifications
- Brand: Wiseco
- Manufacturer Part #: W6075
- Bore Range: 45–57mm
- Length: 6.45 in
- Weight: 0.33 lbs
Common questions
What is the primary function of a flexhone brush?
A flexhone brush is used after primary cylinder honing to remove microscopic peaks and scuffs, creating a smooth plateau finish. This finish is crucial for proper piston ring seating and improved oil retention.
Will this brush enlarge my cylinder bore?
No, this Wiseco flexhone is specifically designed to plateau the cylinder finish without increasing the bore diameter, maintaining the engine's precise tolerances.
Is this flexhone brush suitable for plated cylinder bores?
Yes, this nylon flexhone brush is safe for use on both plated and cast iron cylinder bores found in V-twin engines.
Ordering from Vtwinbikers
- Brand new, sourced through authorized US distribution — never used, never grey-market.
- Not sure it fits? Use Shop by Bike to filter by your year and model, or email us and we will confirm before you order.
- Harley-Davidson and Indian Motorcycle is all we do, so you are talking to people who ride what you ride.
| BRAND | Wiseco |
| TYPE | Tools |
| SKU | 39-6075 |
| WEIGHT | 0.33 lb |
