STONE 94BCD 5-Bolt Chainring Narrow Wide 32T-46T, 7075 Aluminum CNC 1x Chainring for Shimano Deore Alivio STX SRAM Truvativ 5-Arm MTB Crankset

🟢 Product Description

The STONE 94BCD chainring is designed for vintage MTB cranksets and modern 1x drivetrain conversions.
Built from aerospace-grade 7075-T651 aluminum and precision CNC machined, it delivers excellent strength, durability, and reliable chain retention for demanding riding conditions.

Perfect for riders upgrading old 5-arm cranksets to a 1x setup, ensuring smooth power transfer and reduced chain drops.

🟢 Key Features

• Narrow-Wide Tooth Design
  Alternating tooth profile improves chain retention, designed specifically for 1x drivetrain.
  Not compatible with front derailleur shifting.
• Wide Speed Compatibility
  Supports 7-12 speed MTB chains and 8-11 speed road bike chains.
• High Strength Material
  Made from 7075-T651 aluminum for superior stiffness, durability, and long service life.
• Precision CNC Machining
  High precision tolerance (±0.03mm) ensures smooth pedaling, low noise, and efficient power transfer.
• Lightweight & Durable
  Optimized 4mm thickness balances weight and strength for performance riding.

🟢 Specifications

• BCD: 94mm
• Bolt Pattern: 5-Bolt (5 Arm)
• Teeth Options: 32T / 34T / 36T / 38T / 40T / 42T / 44T / 46T
• Thickness: 4mm
• Material: 7075-T651 Aluminum
• Process: CNC Machined + Anodized Finish

🟢 Size / Diameter / Weight

• 32T – 138mm – 45g
• 34T – 146mm – 50g
• 36T – 154mm – 57g
• 38T – 162mm – 66g
• 40T – 170mm – 74g
• 42T – 178mm – 82g
• 44T – 186mm – 91g
• 46T – 194mm – 103g

🟢 Compatible Cranksets

Compatible with standard 94BCD 5-bolt (5-arm) cranksets, commonly found on:

• Shimano Deore (FC-M510 / M530 and similar older models)
• Shimano Alivio (older 5-bolt versions)
• Shimano STX / STX-RC vintage cranksets
• SRAM / Truvativ 5-arm cranksets
• Other vintage MTB cranksets with 94BCD 5 Bolt,like Surly, Sugino,White Industries

🟢 Compatibility Notes (Important)

• ✔ Only fits 94BCD 5-bolt cranksets
• ❌ Not compatible with 96BCD (Shimano asymmetric)
• ❌ Not compatible with 104BCD (4-bolt)
• ❌ Not compatible with direct mount cranksets

🟢 Package Includes

• 1 × Chainring
• 5 × Aluminum Bolts

🟢 Brand Statement

STONE Chainrings are trusted by riders worldwide and used in demanding riding conditions.
Engineered with high precision and premium materials, they deliver excellent performance, durability, and chain stability for both daily riding and competitive use.