BikeMaster 2.75/3.00-12 TR6 Tube - 374607

The BikeMaster 2.75/3.00-12 TR6 Tube (Part #374607) is a natural rubber motorcycle inner tube built for 12-inch wheels running 2.75 or 3.00 width tires — a popular size found on pit bikes, mini bikes, small-displacement motorcycles, and scooters. Whether you're replacing a punctured tube on a trail-ready machine or stocking a spare before a ride day, this BikeMaster tube is a straightforward, quality replacement that gets your wheel back in service fast.

Key Features & Benefits

• Natural Rubber Construction: Made from natural rubber for reliable elasticity and air retention, helping maintain consistent tire pressure over time.
• Seamless Design: Seamless construction means no weak seam points that can fail under pressure — a critical quality detail for inner tubes that see repeated inflation cycles.
• Heavy-Duty TR6 Valve Stem: Fitted with a heavy-duty TR6 valve stem, which is a widely compatible, standard motorcycle tube valve type that works with most valve core tools and pump chucks.
• Dual-Size Compatibility: Fits both 2.75-12 and 3.00-12 tire widths, giving you flexibility across a range of tire sizes on the same 12-inch wheel.
• Individually Packaged: Each tube ships in its own box clearly labeled with the part number and size, making it easy to verify you have the right tube before you start your install.
• Affordable Replacement Option: At under $7, this tube is a cost-effective way to get back on two wheels without a large parts investment.

Specifications

• Brand: BikeMaster
• Part Number (MPN): 374607
• SKU: BKM374607
• UPC: 887337187976
• Tube Size: 2.75/3.00-12
• Valve Stem Type: TR6
• Material: Natural rubber
• Construction: Seamless

Fitment

This tube is designed for motorcycles, pit bikes, and scooters equipped with 12-inch wheels and tires sized 2.75-12 or 3.00-12. This 12-inch wheel size is commonly found on mini bikes, 50cc–160cc pit bikes, small-displacement scooters, and similar powersports machines. Always verify your tire's sidewall markings — specifically the width and rim diameter — before ordering to confirm this is the correct tube for your application. If your wheel is a different diameter (such as 14-inch, 17-inch, or 21-inch), or your tire width falls outside the 2.75–3.00 range, you will need a different tube size. BikeMaster offers a wide range of tube sizes to cover other applications.

What's in the Box

• 1x BikeMaster 2.75/3.00-12 TR6 natural rubber inner tube
• Individually packaged with part number and size clearly marked on the box

Why Buy from ThreePiece.us

ThreePiece.us has been serving powersports and performance enthusiasts since 2014, with over 10,000 customers trusting us for parts, wheels, tires, and accessories. When you order the BikeMaster 374607 tube here, you get:

• Free Shipping: Free shipping on every order — no minimum required.
• Affirm Financing: Break your purchase into manageable payments with Affirm financing, available at checkout.
• Expert Fitment Support: Not sure this tube is right for your bike? Our fitment team is ready to help — reach out before you order to confirm compatibility.
• In-Stock Availability: This is a regularly stocked product, so you're not waiting weeks for a backordered part.

Frequently Asked Questions

What valve stem type does this tube use?

This BikeMaster tube uses a TR6 valve stem, which is a standard heavy-duty motorcycle valve type compatible with common pump chucks and valve core tools.

Will this tube fit both 2.75-12 and 3.00-12 tires?

Yes. The 374607 is sized to fit both 2.75-12 and 3.00-12 tires mounted on a 12-inch rim. Check your tire's sidewall for the exact size before ordering.

Is this tube sold individually or in a pack?

This tube is sold and packaged individually. Each unit comes in its own labeled box showing the part number and size.

How is this tube constructed — is it vulcanized or seamed?

BikeMaster constructs these tubes with seamless construction, which eliminates the potential failure point of a traditional seam, making it a more consistent and reliable inner tube.