- Fits 110BCD 5-bolt cranksets for road bike and gravel bike.
- Compatible with Shimano, SRAM, FSA, Rotor and other similar 110BCD 5-bolt cranksets.
- Compatible with many 5-arm power meters.
- Compatible with standard 5-arm cranksets.
- Compatible with hidden-style 5-arm cranksets.
- For hidden-style 5-arm cranksets, exchange the position of the anti-drop pin to the other side before installation.
- Supports 9-11 speed chains.
- Default version does not support SRAM AXS Flattop chain.
- If want tooth shape for sram axs flattop chain, please send us a message to customize and pay extra surcharge.
- Brand: STONE
- Type: Round Double Chainring
- BCD: 110mm
- Bolt Pattern: 5-Bolt / 5-Arm
- Material: High-strength 7075-T651 Aluminum
- Color: Black
- 46T / 32T, 123g
- 50T / 34T, 161g
- 52T / 36T, 180g
- 53T / 39T, 189g
- 54T / 40T, 206g
- All models are 0mm offset except 46T / 32T.
- 46T / 32T has 2mm inward offset.
This front derailleur extender is designed for 10-speed and 11-speed road bike front derailleurs. It helps lower the front derailleur position when using smaller outer chainrings such as 48T or 46T, improving fit and setup.
- Compatible With: 10-speed / 11-speed road bike front derailleur
- Not Compatible With: 12-speed systems or mountain bike front derailleur
- Material: AL7075
- Screw Material: 304 Stainless Steel
- Extension Distance: 15.5mm
- Weight: 4g
- 2 x Chainrings
- 4 x Aluminum Bolts
- All STONE double chainrings must be used as the original STONE pair set.
- Mixing with other brand chainrings will not work properly.
- Please confirm your crankset is 110BCD 5-bolt before purchase.
- Please confirm chain compatibility before ordering, especially if using SRAM AXS Flattop chain.



