Cycle replacement part that restores reliable pedalling and shifting, the SHIMANO Chainset FC-M311 Altus suits everyday bikes. Commuters and leisure riders benefit from a triple 48/38/28T gear range and a fitted chainguard. Will the square-taper interface and triple rings suit your bottom bracket and riding style?
⚡ At a Glance
- • Crankset Design: Square-taper triple with 48/38/28T chainrings, 175 mm crank length, fitted chainguard, black finish
- • Best for: Commuters and leisure riders needing a straightforward replacement crankset
- • Not ideal for: Racers and ultralight builds where minimum weight is the priority
Square-taper triple chainset supplied with a chainguard and 175 mm crank arms. Designed as a Shimano Altus spare part for routine repairs and replacements.
Easy fit for common bottom brackets - with square-taper interface
Square-taper interface mates a tapered axle to matching crank holes for a straightforward mechanical connection. Standard nuts or bolts secure the crank arms without specialised press-fit tools.
Quick swap-in for many older or replacement bottom brackets, simplifying repairs and service intervals.
Versatile gearing for mixed riding - thanks to 48/38/28T triple chainrings
Three chainrings provide distinct ratio steps for climbing, steady cruising and higher-speed sections. The 48/38/28T spread gives accessible low gears and practical top-end cadence.
Useful gearing for hilly commutes and weekend rides, reducing the need for frequent cadence adjustments.
Cleaner everyday use - with fitted chainguard
Chainguard covers the outer ring to shield clothing from direct contact with chain grease and road debris. The guard attaches alongside the chainrings for continuous protection.
Keeps trousers cleaner on commutes and reduces incidental grease transfer during routine riding.
✨ The 4 Key Reasons for SHIMANO Chainset FC-M311 Altus
- Serviceable construction - Enables quick replacement during routine maintenance and repairs
- Triple 48/38/28T gearing - Delivers wide ratios for climbs and steady cruising
- 175 mm crank arms - Promotes comfortable cadence for average adult riders on most bikes
- Fitted chainguard - Protects clothing and reduces grease transfer during daily commuting
📋 Technical Details at a Glance
- Category: Bicycle chainset
- Model: FC-M311 Altus
- Brand: SHIMANO
- Type: Square taper triple chainset
- Chainrings: 48/38/28T
❓ Frequently Asked Questions
Q: Does the chainset use a square-taper interface?
A: Yes, the name indicates a square-taper interface, designed to fit compatible square-taper bottom brackets.
Q: What chainring sizes are included?
A: The chainset includes a triple chainring setup with 48T, 38T and 28T sizes.
Q: Is a chainguard included?
A: Yes, a fitted chainguard is included as part of the supplied configuration.
🏆 Our Verdict
Ideal for commuters and leisure cyclists seeking a straightforward, serviceable replacement crankset. The combination of a square-taper interface, triple 48/38/28T rings and a fitted chainguard makes it practical and easy to fit. A sensible choice for regular maintenance that keeps bikes on the road with minimal fuss and long-term value.
