Stone 110bcd Double Chainring aero style for Shimano 11s 12s 5 Bolts Crank 12 Speed Road Bike Round 46 32t 52 36T 53 39T 54 40T 50 34 48 33T 2x

Stone 110bcd Double Chainring aero style for Shimano 11s 12s 5 Bolts Crank 12 Speed Road Bike Round 46 32t 52 36T 53 39T 54 40T 50 34 48 33T 2x

Fit for any brand of 110bcd 5 bolts crankset and power meter of road bike and gravel bike. Powermeters like magene,sigeyi, xcadey.

Ordinary 5 arms crank support. hidden style 5 arms crank also support, but you need to exchange the anti dropping pin position to another side by yourself.

Speed:for 9- 12s chain of road bike, for shimano chain, KMC YBN. Not for Sram AXS flattop chain.

You can search AXS flattop double speed chainring in our store.

Material: High strength Aluminum 7075-T651

Color: black
Size:110bcd

9-12 speed chain support.

Advantage: fast chain shifting, upto 4 to 10pcs shifting pin in different size.

Aero style weight

Size Weight-grams

46T+32T 136.5g

48T+33T 146.8g

50T+34T 158.1g

52T+36T 176.5g

53T+39T 193.4g

54T+40T 205.4g

55T+40T 213.6g

56T+42T 242.2g

58T+44T 271.4g

Offset: all models are 0mm offset
 

Package content:
2pcs chainrings and 5pcs Alu bolts

Precision-Engineered Climbing Pins — Faster, Smoother Shifting

After extensive testing, we developed our own CNC-machined climbing pins made from 304 stainless steel to resist rust and wear.

High-precision craftsmanship ensures quicker and more reliable chain engagement — giving you smoother, faster front shifting every time.

Optimized Design for Every Tooth Ratio

Each chainring size features a custom pin configuration to match its specific tooth profile.

Unlike low-cost designs that simply add more pins, STONE’s optimized layout guarantees the best shifting efficiency for 12-speed drivetrains.

Only when the chain aligns perfectly with the correct pin position does flawless shifting occur.

Model & Pin Configuration

Model Climbing Pins

BCD110B-4632-Aero 4 pins

BCD110B-4833-Aero 6 pins

BCD110B-5034-Aero 6 pins

BCD110B-5236-Aero 8 pins

BCD110B-5339-Aero 9 pins

BCD110B-5440-Aero 10 pins

BCD110B-5540-Aero 10 pins

BCD110B-5642-Aero 10 pins

BCD110B-5844-Aero 10 pins

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