STONE 8-Bolt Direct Mount Chainring with Removable Bash Guard t-type axs flattop for sram 12s chain 30 32 34 36 38 40T 3mm offset
STONE 8-Bolt Direct Mount Chainring with Removable Bash Guard t-type axs flattop for sram 12s chain 30 32 34 36 38 40T 3mm offset
STONE 8-Bolt Direct Mount Chainring with Removable Bash Guard t-type axs flattop for sram 12s chain 30 32 34 36 38 40T 3mm offset
STONE 8-Bolt Direct Mount Chainring with Removable Bash Guard t-type axs flattop for sram 12s chain 30 32 34 36 38 40T 3mm offset
STONE 8-Bolt Direct Mount Chainring with Removable Bash Guard t-type axs flattop for sram 12s chain 30 32 34 36 38 40T 3mm offset
STONE 8-Bolt Direct Mount Chainring with Removable Bash Guard t-type axs flattop for sram 12s chain 30 32 34 36 38 40T 3mm offset
STONE 8-Bolt Direct Mount Chainring with Removable Bash Guard t-type axs flattop for sram 12s chain 30 32 34 36 38 40T 3mm offset
STONE 8-Bolt Direct Mount Chainring with Removable Bash Guard t-type axs flattop for sram 12s chain 30 32 34 36 38 40T 3mm offset
STONE 8-Bolt Direct Mount Chainring with Removable Bash Guard t-type axs flattop for sram 12s chain 30 32 34 36 38 40T 3mm offset
STONE 8-Bolt Direct Mount Chainring with Removable Bash Guard t-type axs flattop for sram 12s chain 30 32 34 36 38 40T 3mm offset
STONE 8-Bolt Direct Mount Chainring with Removable Bash Guard t-type axs flattop for sram 12s chain 30 32 34 36 38 40T 3mm offset
STONE 8-Bolt Direct Mount Chainring with Removable Bash Guard t-type axs flattop for sram 12s chain 30 32 34 36 38 40T 3mm offset
STONE 8-Bolt Direct Mount Chainring with Removable Bash Guard t-type axs flattop for sram 12s chain 30 32 34 36 38 40T 3mm offset
STONE 8-Bolt Direct Mount Chainring with Removable Bash Guard t-type axs flattop for sram 12s chain 30 32 34 36 38 40T 3mm offset
STONE 8-Bolt Direct Mount Chainring with Removable Bash Guard t-type axs flattop for sram 12s chain 30 32 34 36 38 40T 3mm offset
STONE 8-Bolt Direct Mount Chainring with Removable Bash Guard t-type axs flattop for sram 12s chain 30 32 34 36 38 40T 3mm offset
STONE 8-Bolt Direct Mount Chainring with Removable Bash Guard t-type axs flattop for sram 12s chain 30 32 34 36 38 40T 3mm offset
STONE 8-Bolt Direct Mount Chainring with Removable Bash Guard t-type axs flattop for sram 12s chain 30 32 34 36 38 40T 3mm offset
STONE 8-Bolt Direct Mount Chainring with Removable Bash Guard t-type axs flattop for sram 12s chain 30 32 34 36 38 40T 3mm offset
STONE 8-Bolt Direct Mount Chainring with Removable Bash Guard t-type axs flattop for sram 12s chain 30 32 34 36 38 40T 3mm offset
STONE 8-Bolt Direct Mount Chainring with Removable Bash Guard t-type axs flattop for sram 12s chain 30 32 34 36 38 40T 3mm offset
STONE 8-Bolt Direct Mount Chainring with Removable Bash Guard t-type axs flattop for sram 12s chain 30 32 34 36 38 40T 3mm offset
STONE 8-Bolt Direct Mount Chainring with Removable Bash Guard t-type axs flattop for sram 12s chain 30 32 34 36 38 40T 3mm offset
STONE 8-Bolt Direct Mount Chainring with Removable Bash Guard t-type axs flattop for sram 12s chain 30 32 34 36 38 40T 3mm offset
STONE 8-Bolt Direct Mount Chainring with Removable Bash Guard t-type axs flattop for sram 12s chain 30 32 34 36 38 40T 3mm offset
STONE 8-Bolt Direct Mount Chainring with Removable Bash Guard t-type axs flattop for sram 12s chain 30 32 34 36 38 40T 3mm offset
STONE 8-Bolt Direct Mount Chainring with Removable Bash Guard t-type axs flattop for sram 12s chain 30 32 34 36 38 40T 3mm offset

STONE 8-Bolt Direct Mount Chainring with Removable Bash Guard t-type axs flattop for sram 12s chain 30 32 34 36 38 40T 3mm offset

For Sram T-type MTB 12s chain,AXS flattop 12s chain

3mm Offset

Buy Now

STONE SR8-3OF-HP 8-Bolt Direct Mount Chainring with Removable Bash Guard

Upgrade your drivetrain with the STONE SR8-3OF-HP, a high-strength 8-bolt direct mount chainring designed for SRAM mountain bike cranksets. Made from premium AL7075-T651 aluminum alloy, this chainring delivers excellent strength, hardness, and long-lasting durability for demanding MTB riding.

The chainring features a 3mm offset design, optimized for SRAM 8-bolt mountain crank interfaces. It is compatible with SRAM T-Type chains and can also work with SRAM AXS 12-speed road chains. With its CNC-machined structure and anodized surface finish, the SR8-3OF-HP provides precise chain engagement, improved wear resistance, and a clean high-end appearance.

A key feature of this model is the removable split bash guard. Riders can choose to install or remove the guard depending on riding style and protection needs. The bash guard has an effective thickness of 5mm, helping protect the chainring teeth from impacts while riding on technical terrain.

Key Features

  • Premium AL7075-T651 Aluminum
    • High-strength 7075 aluminum alloy with T651 heat treatment
    • Overall hardness: approximately 150HB
    • Strong, rigid, and durable for aggressive MTB use
  • CNC Machined Construction
    • Precision CNC machining for accurate fitment and low runout
    • Helps maintain stable chain engagement and smooth pedaling performance
  • Anodized Surface Treatment
    • Provides enhanced oxidation resistance
    • Helps prevent long-term discoloration and corrosion of the aluminum surface
  • 3mm Offset Design
    • Designed with 3mm offset
    • Suitable for SRAM-style 8-bolt mountain direct mount cranksets
  • Removable Bash Guard
    • Split detachable guard design
    • Effective guard thickness: 5mm
    • Can be installed or removed based on riding needs
    • Different chainring tooth counts use corresponding bash guard sizes
  • T-Type Chain Compatibility
    • Designed for SRAM mountain T-Type chains
    • Also compatible with SRAM road AXS 12-speed chains
    • Other chain types are not recommended
  • Direct Mount 8-Bolt Interface
    • Fits SRAM original mountain 8-bolt direct mount cranksets
    • Easy installation with original or compatible bolts

Specifications

ItemDetails
BrandSTONE
ModelSR8-3OF-HP
Mount TypeSRAM 8-Bolt Direct Mount
MaterialImported AL7075-T651 Aluminum
HardnessApprox. 150HB
Chainring Thickness6.7mm without bash guard
Thickness with Bash Guard12mm
Bash Guard Effective Thickness5mm
Offset3mm Offset
ProcessCNC Machined
Surface FinishAnodized
ColorsAnodized Black / Silver
Tooth Options30T / 32T / 34T / 36T / 38T / 40T

Size & Weight Options

Chainring Without Bash Guard

TeethMax Outer DiameterWeightPart NumberColor
30T130mm62.1gSR8-3OF-HP-30TYBlack / Silver
32T138mm67.4gSR8-3OF-HP-32TYBlack / Silver
34T146mm75.4gSR8-3OF-HP-34TYBlack / Silver
36T154mm81.7gSR8-3OF-HP-36TYBlack / Silver
38T162mm89.4gSR8-3OF-HP-38TYBlack / Silver
40T170mm94gSR8-3OF-HP-40TYBlack / Silver

Chainring with Bash Guard

TeethMax Outer DiameterWeightPart NumberColor
30T130mm106.6gSR8-3OF-HP-30TYBlack / Silver
32T138mm116.3gSR8-3OF-HP-32TYBlack / Silver
34T146mm122.1gSR8-3OF-HP-34TYBlack / Silver
36T154mm132.8gSR8-3OF-HP-36TYBlack / Silver

Weight is for reference only. Product weight may vary due to optimization or production updates without prior notice.

Compatibility

Compatible Cranksets

  • SRAM XX Eagle SL Crankset
  • SRAM XX Eagle Crankset
  • SRAM XO Eagle Crankset
  • SRAM GX Eagle Crankset
  • Also compatible with STONE FC-MT001 crankset when used with bash guard version

Chain Compatibility

  • SRAM Mountain T-Type chain
  • SRAM Road AXS 12-speed chain

Other chain types are not supported.

Installation Notes

  • Please confirm your crank interface before purchase.
  • Designed for SRAM 8-bolt direct mount mountain cranksets.
  • Chainring offset: 3mm
  • Use original bolts or compatible replacement bolts.
  • Recommended tools:
    • T20 Torx wrench for bash guard bolts: 4Nm
    • T30 Torx wrench for chainring mounting bolts: 11Nm
  • The bash guard is removable and can be installed according to riding needs.
  • Different tooth counts require matching bash guard sizes.

STONE 8-Bolt Direct Mount Chainring with Removable Bash Guard t-type axs flattop for sram 12s chain 30 32 34 36 38 40T 3mm offset STONE 8-Bolt Direct Mount Chainring with Removable Bash Guard t-type axs flattop for sram 12s chain 30 32 34 36 38 40T 3mm offset STONE 8-Bolt Direct Mount Chainring with Removable Bash Guard t-type axs flattop for sram 12s chain 30 32 34 36 38 40T 3mm offset STONE 8-Bolt Direct Mount Chainring with Removable Bash Guard t-type axs flattop for sram 12s chain 30 32 34 36 38 40T 3mm offset STONE 8-Bolt Direct Mount Chainring with Removable Bash Guard t-type axs flattop for sram 12s chain 30 32 34 36 38 40T 3mm offset STONE 8-Bolt Direct Mount Chainring with Removable Bash Guard t-type axs flattop for sram 12s chain 30 32 34 36 38 40T 3mm offset STONE 8-Bolt Direct Mount Chainring with Removable Bash Guard t-type axs flattop for sram 12s chain 30 32 34 36 38 40T 3mm offset STONE 8-Bolt Direct Mount Chainring with Removable Bash Guard t-type axs flattop for sram 12s chain 30 32 34 36 38 40T 3mm offset STONE 8-Bolt Direct Mount Chainring with Removable Bash Guard t-type axs flattop for sram 12s chain 30 32 34 36 38 40T 3mm offset STONE 8-Bolt Direct Mount Chainring with Removable Bash Guard t-type axs flattop for sram 12s chain 30 32 34 36 38 40T 3mm offset STONE 8-Bolt Direct Mount Chainring with Removable Bash Guard t-type axs flattop for sram 12s chain 30 32 34 36 38 40T 3mm offset STONE 8-Bolt Direct Mount Chainring with Removable Bash Guard t-type axs flattop for sram 12s chain 30 32 34 36 38 40T 3mm offset STONE 8-Bolt Direct Mount Chainring with Removable Bash Guard t-type axs flattop for sram 12s chain 30 32 34 36 38 40T 3mm offset

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