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Shimano Altus FC-M311 Square Taper 48/38/28T 170mm Chainset with Chainguard - Shimano - FC-M311

Shimano Altus FC-M311 Square Taper 48/38/28T 170mm Chainset with Chainguard - Shimano - FC-M311

Entry level 7/8-speed chain set offering slick hyper drive shifting performance for off road enthu...

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eBayShimano M311 Square Taper 48/38/28T 170mm 9 Speed Bike Triple Chainset
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TredzShimano Black Fc-M311 Altus Square Taper Chainset
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OnBuy.comShimano (48/38/28T - 170 Mm, Black) Altus Fc-M311 Altus Square Taper Chainset With Chainguard
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Condor CyclesShimano Black Altus M311 Chainset
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Product Information

Full details

This guide is for cyclists looking to understand and maintain their Shimano Altus FC-M311 chainset. It offers reliable shifting performance for off-road enthusiasts. Note that this chainset is designed for 7/8-speed drivetrains and requires a 123mm square taper bottom bracket.

All features

Model Part NumberFC-M311
BrandSHIMANO

Extended Product Information

FAQs

What type of bottom bracket is required?

A 123mm square taper bottom bracket is required for this chainset.

What speeds is this chainset compatible with?

This chainset is compatible with 7 and 8-speed drivetrains.

What is the material of the chainrings?

The chainrings are made of steel.

Does this chainset include a chainguard?

Yes, it includes a chainguard.

What does 'Open Box Grade A' mean?

It means the item is new and unused but may have box damage or a replaced box.

Is there a warranty?

Yes, it comes with a 12-month warranty.

Can I use this chainset with a 9-speed drivetrain?

No, it is not compatible with 9-speed or higher drivetrains.

Troubleshooting

Poor shifting performance.

Check and adjust the front derailleur. Ensure the chain is clean and lubricated. Inspect for bent chainring teeth.

Chain slipping.

Check chain wear and replace if necessary. Inspect chainrings for wear. Ensure the front derailleur is properly aligned.

Crank arm coming loose.

Tighten the crank arm bolts to the recommended torque. Inspect the square taper interface for wear.

Pros and Cons

Pros

  • Smooth shifting performance due to Hyperdrive SG-X technology.
  • Durable steel chainrings offer longevity.
  • Compatible with a wide range of 7/8-speed drivetrains.
  • Chainguard provides added safety and convenience.

Cons

  • Requires a compatible square taper bottom bracket.
  • May not be suitable for high-performance or professional use.
  • Limited to 7/8-speed drivetrains.
  • Open box condition may have cosmetic imperfections.

Setup, Compatibility & Care

This chainset is designed for use with a 123mm square taper bottom bracket. Ensure your bottom bracket is compatible before installation. Installation typically involves:

  1. Removing the old chainset.
  2. Installing the new chainset onto the bottom bracket.
  3. Securing the crank arms.
  4. Adjusting the front derailleur for optimal shifting.

To maintain the chainset:

  • Regularly clean and lubricate the chain.
  • Inspect the chainrings for wear.
  • Tighten crank arm bolts as needed.
  • Clean the chainguard.

![Chainset Installation](#)

![Chainset Maintenance](#)

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