Custom Narrow-Wide Tooth Profiles for SRAM AXS Flattop T-Type 12/13 Speed and Campagnolo Ekar 13 Speed Chains
Stone Chainring Custom Tooth Service
This listing covers the additional fee for a custom tooth profile on Stone chainrings.
If you want to convert your bike to a 1x drivetrain while keeping a SRAM AXS road rear derailleur or using a special chain, this service makes it possible.
Please send us a message before placing an order. Let us know your chain type, BCD, crank model and tooth quantity. Thank you.
Custom Tooth Profiles We Offer
The Stone workshop provides narrow-wide tooth profile customization for modern chains:
- AXS/T-Type Flattop tooth profile for SRAM AXS/T-Type road 12/13 Speed Flattop chains
- Ekar 13 Speed tooth profile for Campagnolo Ekar 13 Speed chains
Available Chainring Types
AXS Flattop, T-Type and Ekar 13 Speed tooth customization can be applied to most Stone chainrings, except 64BCD:
- 76BCD
- 86BCD
- 88BCD
- 96BCD symmetric
- 96BCD asymmetric, e.g. M7000 / M8000
- 104BCD
- 110BCD 5 arms
- 110BCD 4 arms
- 110G
- 120BCD
- 130BCD
- 135BCD
- 144BCD
- Direct mount chainrings from different brands
For direct mount chainrings, please send us your crank model or a photo before placing an order so we can verify compatibility.
How to Order
Please contact us by message before placing an order and provide the following details:
- Chain type: SRAM AXS / T-Type Flattop, or Campagnolo Ekar 13 Speed
- BCD or crank model
- Tooth quantity, such as 36T / 38T / 40T / 42T
- Bike type: MTB / Gravel / Road
- Photo of your crank or old chainring
We will review your specification and confirm it with you before production.
Features
The Stone workshop’s newly designed narrow-wide tooth profile delivers better riding performance:
- Enhanced anti-chain-drop performance
- Better chain retention
- Improved self-cleaning from soil, mud and dirt
- Less riding noise
- Well suited for 1x drivetrain setups
Material
Material: high-strength Aluminum 7075-T651.
The aluminum is supplied by the US company Aleris, which also supplies aircraft makers Airbus, Boeing and Bombardier.
This material offers excellent stiffness, strength and endurance for a long service life.
CNC Processing
Stone chainrings are produced on high-precision CNC equipment from Taiwan and Germany:
- Processing accuracy: 0.03mm
- Accurate tooth shape
- Good chain engagement
- Stable riding performance
Important Notice
This is a custom service listing.
Please do not place an order directly without communicating with us first.
Send us a message to confirm your chainring specification, chain type and tooth quantity before ordering.