Automotive replacement part for small recreational vehicles that restores braking performance with a machined 4-inch drum for brake band use, the BUHNSS Brake Drum replaces Yerf-Dog and Manco rotary units. Owners gain confidence from straightforward compatibility that reduces downtime and simplifies repairs. Does the 2-inch centre bore and dual bolt patterns match your axle and hub?
⚡ At a Glance
- • Stopping Reliability: Consistent band contact from a machined 4-inch outer diameter
- • Best for: Owners replacing worn rotary drums on Yerf-Dog and Manco-style go-karts and mini bikes
- • Not ideal for: Vehicles requiring different centre bore sizes or more than two bolt patterns
Machined 4-inch drum with a 2-inch centre hole and two bolt hole patterns supplied as a single replacement unit. Designed for brake band use on go-karts and mini bikes and suitable for Yerf-Dog and Manco rotary styles.
Hassle-free mounting – With two bolt hole patterns
Dual hole patterns of 5/16 inch and 3/8 inch allow alignment with a wider range of hub flanges, while the 2-inch centre bore ensures accurate centring on compatible spindles. Dimensions are supplied so comparisons with existing parts are straightforward.
Greater chance of a direct bolt-up reduces the need for adapters or drilling. Faster fitment means less workshop time and fewer unknowns during replacement.
Predictable braking contact – Thanks to a machined 4-inch outer diameter
A machined outer diameter provides a smooth, consistent surface for brake band engagement and maintains uniform contact around the circumference. The 4-inch sizing is specified for brake band applications.
Even friction across the band leads to more consistent stopping behaviour after bedding-in. Maintenance becomes simpler when the friction surface is uniform and true.
Ready for direct swap – With single-unit supply and standard sizing
Sold as one brake drum with specified measurements, the unit is intended to replace Yerf-Dog and Manco rotary drums without additional components. Key dimensions include a 4-inch OD and a 2-inch ID centre hole.
A single, measurable replacement simplifies parts sourcing and repair planning. Backyard mechanics and small garages can complete a repair with minimal extra parts.
✨ The 4 Key Reasons for BUHNSS Brake Drum
- Yerf-Dog/Manco compatibility - Fits many rotary drum applications without adapters
- Dual bolt patterns - Matches both 5/16 inch and 3/8 inch flange bolts
- 2-inch centre bore - Aligns with common go-kart spindles for easy installation
- Single-unit supply - Supplied as one drum, ready for immediate replacement use
📋 Technical Details at a Glance
- Category: Automotive Parts and Accessories
- Product Type: Brake Drum
- Brand: BUHNSS
- Fitment: For go kart, cart, car, mini bike; replaces Yerf-Dog and Manco rotary
- Package contents: 1 x Brake Drum
❓ Frequently Asked Questions
Q: Which vehicles or models will this fit?
A: Fits go-kart, cart, car and mini bike applications and is described as a replacement for Yerf-Dog and Manco rotary drums.
Q: What are the mounting dimensions I should check?
A: Outer diameter is 4 inches, centre hole is 2 inches, and bolt hole patterns are 5/16 inch and 3/8 inch; compare these to your hub before ordering.
Q: What comes in the package?
A: The package includes one brake drum.
🏆 Our Verdict
Suitable for owners and mechanics replacing worn rotary drums on go-karts, mini bikes and similar small vehicles. Machined 4-inch outer diameter, a 2-inch centre bore and dual bolt patterns provide a measurable, compatible replacement for Yerf-Dog and Manco styles. The single-piece supply and standard dimensions make it a practical long-term replacement that reduces parts sourcing and repair time.
