Surly MWOD Inner Chainring
Best durable upgrade for long distance touring and off road cyclists.
This is the essential hack for riders pushing the limits of tire width. By offsetting your drivetrain, it eliminates the frustration of chain-on-tire rub, though it requires a specific setup to install. It’s a simple, durable fix that transforms your bike into a true fat-tire capable machine.
$35.00
at
Yawpcyclery
More Mr. Whirly options
Who it's for
- High-mileage riders seeking a long-lasting drivetrain component
- Fat bike enthusiasts running wide tires on narrow hubs
- Off-road cyclists demanding dependable performance in harsh environments
Who should skip it
- Cyclists using non-Surly cranksets or standard 104mm BCD spiders
- Weight-conscious racers prioritizing the lightest possible build
- Riders needing a wide variety of chainring size options
Performance breakdown
Tire Clearance Optimization
Specifically engineered to solve chain-rub issues with oversized mountain setups.
Material Longevity
Stainless steel construction ensures exceptional wear resistance under heavy torque.
Installation Complexity
Requires specific crankset compatibility and careful alignment during the mounting process.
Drivetrain Versatility
Opens up custom gearing options for specialized, wide-tire mountain bike builds.
Weight Penalty
Stainless steel adds durability but carries a slight weight disadvantage.
Mechanical Precision
Secure bolt-circle interface maintains consistent power transfer without unwanted flex.
Key Specs
Position
Inner
Tooth Count
22
Bolt Circle Diameter (BCD)
58mm
Material
Stainless Steel
Mounting Type
Direct Mount
Intended Use
Mountain Biking
Chain Compatibility
Single Speed
Compatible Crankset Brands
Surly (Mr. Whirly)
Know before you buy
Still have a question?
Ask Metto anything about the Surly MWOD Inner Chainring before you decide.
