SP1 Glaze Breaker Honing Stones - 280 Grit 3-Pack - Harley & Indian V-Twin
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.
Prepare your V-twin cylinders for a fresh rebuild with SP1 Glaze Breaker Honing Stones. This 280-grit three-pack is essential for removing cylinder glaze, ensuring proper ring seating and optimal engine performance. Designed for efficient bore preparation, these stones help you achieve a professional finish on Harley-Davidson and Indian Motorcycle engines.
Why riders pick this
- 280-grit for effective cylinder glaze removal
- Three-pack ensures ample cutting surface
- Prepares bores for optimal ring seating
- Essential for V-twin engine rebuilds
- Compatible with Harley and Indian Motorcycle engines
When rebuilding a V-twin engine, proper cylinder preparation is critical for longevity and performance. SP1 Glaze Breaker Stones are specifically formulated with a 280-grit abrasive to effectively remove cylinder glaze, a hardened surface that can prevent new piston rings from seating correctly. This three-pack provides ample cutting surfaces, allowing for thorough and efficient bore conditioning, which is a key step before any reboring or re-ringing process on your Harley or Indian Motorcycle.
Essential for Engine Rebuilds
- 280-grit abrasive ensures effective and rapid glaze removal
- Three-pack quantity provides multiple fresh cutting surfaces for thorough work
- Designed to quickly eliminate cylinder glaze for optimal ring seating
- Prepares cylinder bores for subsequent machining or re-ringing
- Compatible with standard cylinder honing tools for V-twin engines
Achieve Optimal Ring Seating
The success of an engine rebuild hinges on meticulous attention to detail, especially when it comes to cylinder walls. Using SP1 Glaze Breaker Stones helps you create the ideal cross-hatch pattern, which is vital for oil retention and proper piston ring break-in. This simple yet crucial step prevents oil consumption issues and ensures your rebuilt Harley or Indian V-twin engine performs as intended from the first fire-up.
Specifications
- Brand: SP1
- Manufacturer Part #: SM-12154-3
- UPC: 191361193279
- Grit: 280
- Quantity: 3 per pack
- Dimensions: 6.4 in L × 4 in W × 0.8 in H
- Weight: 0.1 lbs
- Country of Origin: China (Taiwan)
Common questions
What grit are these honing stones?
These SP1 Glaze Breaker Stones are 280 grit, which is ideal for quickly and effectively removing cylinder glaze without excessively altering the bore dimensions.
How many stones are included in each pack?
Each package contains three SP1 Glaze Breaker Stones, providing sufficient material for a complete cylinder glaze removal job on V-twin engines.
Do I need special equipment to use these stones?
These stones are designed to be used with a compatible cylinder honing tool. Please ensure your existing honing equipment is suitable for use with these specific dimensions and grit.
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 | 39-1038 |
| WEIGHT | 0.1 lb |
