SP1 Stone-Type Glaze Breaker - V-Twin Cylinders
About SP1
SP1 parts and accessories are stocked at Vtwinbikers for Harley-Davidson and Indian Motorcycle applications. Every SP1 item we list is new and sourced through authorized distribution. If you are not certain a part matches your year and model, use Shop by Bike or email our team before you order and we will confirm fitment first.
The SP1 Stone-Type Glaze Breaker is an essential tool for any V-twin engine builder or enthusiast. It effectively removes cylinder glaze, preparing the bore for new piston rings or reboring operations. This tool ensures proper ring seating and optimal engine performance.
Why riders pick this
- Removes cylinder glaze for proper ring seating
- Adjustable pressure for consistent honing
- Three cutting stones for efficient material removal
- Works with any standard electric drill
- Designed for V-twin motorcycle cylinders
When rebuilding a V-twin engine, proper cylinder preparation is critical for longevity and performance. The SP1 Stone-Type Glaze Breaker provides consistent, controlled honing to remove the hard glaze that forms on cylinder walls. This process is vital for allowing new piston rings to seat correctly, preventing oil consumption and blow-by.
Consistent Honing for Optimal Ring Seal
- Removes cylinder glaze effectively before ring installation
- Adjustable pressure control for consistent honing results
- Three cutting stones for faster and more uniform material removal
- Compatible with any standard electric drill for easy operation
Achieve Professional Engine Rebuilds
Using the right tools for engine work makes all the difference. This glaze breaker simplifies a critical step in V-twin engine rebuilding, helping you achieve a professional finish. Its design allows for easy, one-hand operation, preventing accidental vertical scratches that can compromise cylinder integrity. Ensure your next top-end refresh performs as it should by starting with properly honed cylinders.
Specifications
- Brand: SP1
- Manufacturer Part #: SM-12153
- UPC: 191361193262
- Weight: 0.84 lbs
- Country of Origin: China (Taiwan)
Common questions
What bore sizes does this glaze breaker accommodate?
This tool is designed for V-twin motorcycle cylinders with bore diameters from 2 to 7 inches. It features an adjustable stop-collar to quickly set the range.
Can I use this with my cordless drill?
Yes, the SP1 Stone-Type Glaze Breaker is compatible with any standard electric drill, whether corded or cordless, making it versatile for any shop or garage.
Will this tool scratch my cylinder walls?
The one-hand compression design allows for easy lifting and control, which helps prevent vertical scratches during the honing process. Proper technique ensures a smooth finish.
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 | SP1 |
| TYPE | Tools |
| SKU | 39-1030 |
| WEIGHT | 0.84 lb |
