MMG 130/90-16 Inner Tube for Dirt Bike — TR4 Straight Valve, Butyl Blend Durable Fit

MMG's 130/90-16 inner tube with a heavy-duty TR4 straight valve delivers long-lasting air retention and reliable shock absorption for dirt bikes and compatible 16-inch wheels.

This inner tube is engineered as a direct, affordable replacement for riders who need a sturdy, easy-to-install tube that fits multiple 16-inch tire sizes. Manufactured from a butyl rubber blend, it balances flexibility for impact cushioning with toughness for abrasion and puncture resistance. The included TR4 straight valve stem simplifies pumping and airing up with common bike pumps and compressors, while the tube’s shape and material suit both off-road and street-oriented riding needs.

Which tire sizes will this MMG inner tube fit?

The MMG tube is sized to work with several common 16-inch tire widths and aspect ratios, so you can fit it into a variety of motorcycles without guessing. It's especially suited for many dirt bikes and dual-sport models that use 16-inch rear wheels.

• Fits 130/90-16 and 140/90-16 tire sizes
• Compatible with 140/80-16 and 150/80-16 widths
• Works with tube-type 5.00 and 5.10-16 tires
• Suitable for most 16-inch rims requiring a 130–150mm width tube

How durable and air-tight is the butyl construction?

Butyl rubber is chosen because it holds air far longer than natural rubber, while still providing enough give to absorb impacts. MMG’s blended formulation improves puncture resistance and longevity for frequent riding and rough surfaces.

• Butyl blend reduces air loss over time for fewer top-ups
• Resists cracking, flex fatigue, and common abrasion
• Designed to withstand typical off-road stresses and road vibrations
• Manufactured for consistent thickness and performance

What does the TR4 straight valve stem mean for pumping and repairs?

The TR4 straight valve stem is a robust, widely used valve type that makes inflation straightforward with standard pumps and air tools. It also simplifies plug repairs or tube swaps if you need to service the tire mid-ride or at home.

• TR4 straight stem fits common pump heads and adapters
• Easy to access for pressure checks and quick inflation
• Sturdy mounting reduces valve wobble and leaks
• Compatible with standard valve caps and core tools

Is this tube a good value compared with OEM options?

MMG positions this inner tube as a cost-effective alternative that doesn’t trade away essential performance. Riders frequently choose aftermarket tubes like this to replace worn OEM parts quickly while staying within a moderate budget.

• Lower price point than many original-equipment tubes
• Comparable durability and air retention to higher-priced tubes
• Ready-to-install out of the box for fast replacement
• Backed by MMG customer support for post-purchase help

Who is this for: The MMG 130/90-16 TR4 inner tube is aimed at dirt bike and dual-sport riders, mechanics, and weekend enthusiasts who need a dependable, easy-to-install replacement tube for 16-inch wheels. It's ideal for those who want dependable air retention and a rugged valve stem without paying premium OEM prices, whether for routine maintenance, trail repairs, or keeping a spare on hand.