FSA Pro Road 36T Chainring
FSA

FSA Pro Road 36T Chainring

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CNC-machined FSA Pro Road 36T inner chainring for 10/11-speed road double cranks. 110mm 5-bolt BCD, lightweight aluminum with black anodized finish for crisp front shifting.

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Product Details

Overview & Technology

FSA Pro Road 36T (MPN 371-0236A, Product #390664) is a precision CNC-machined inner chainring designed for 10/11-speed road double cranksets. Built to the 110mm, 5-bolt BCD standard, it replaces the inner ring on compact and semi-compact road setups to deliver reliable low-end gearing, a tidy chainline and minimal weight penalty. The ring is manufactured from high-grade aluminum and finished in durable black anodizing to resist corrosion and wear. Its tooth profiles and shifting ramps are optimized for modern 10/11-speed chains, giving fast, predictable front shifts under load and clean chain entry when mashing climbs or sprinting out of corners.

Key Features & Benefits

Precision construction: CNC-machined aluminum delivers consistent tooth geometry and tight tolerances for smooth shifting and long life. The lightweight construction keeps rotational mass down to help acceleration. Practical advantages include: • 110mm 5-bolt BCD for broad crank compatibility • 36 teeth — ideal for compact doubles or mixed-terrain road setups • Optimized tooth ramps and profiles for 10/11-speed chain engagement • Black anodized finish for corrosion resistance and a stealth look

Fit, Compatibility & Installation

This inner ring is intended for use on road double cranksets that accept 110mm, 5-bolt chainrings. It is specified for 10- and 11-speed drivetrains; while a 9-speed chain may work in a pinch, shifting performance and chain retention are tuned for 10/11-speed widths and profiles. Check your crank's BCD and bolt pattern before purchasing. Installation notes: use the correct length chainring bolts and tighten to your crank manufacturer's recommended torque (typically around 8–12 Nm for chainring bolts). Ensure the ring is mounted in the inner position with the correct tooth orientation and matched to a compatible outer ring for best shifting. Part number 371-0236A replaces worn inner rings on many FSA and third-party 110 BCD cranks, but always confirm crank-specific compatibility before fitment.

Who It's For

The FSA Pro Road 36T inner chainring is aimed at road cyclists who want a reliable, lightweight replacement or upgrade for compact double cranksets — club riders, commuters who encounter climbs, and racers needing a trusted low gear. It's especially useful when replacing a worn inner ring or when converting a semi-compact set-up to a slightly lower gear range. Mechanics and home wrenchers will appreciate the straightforward 110 BCD fitment and the ring's durability; racers will value the crisp front shifts and low rotating mass. It’s a practical swap for riders who demand predictable shifting and clean chainline performance on 10/11-speed systems.

Key Features

  • ✓ CNC-machined aluminum for consistent tooth geometry and light weight
  • ✓ 36-tooth inner ring ideal for compact and semi-compact road doubles
  • ✓ 110mm 5-bolt BCD fits a wide range of road cranksets
  • ✓ Optimized ramps and tooth profiles for 10/11-speed chains
  • ✓ Durable black anodized finish resists corrosion and wear
  • ✓ OEM FSA part 371-0236A — direct replacement option

Specifications

BCD 110
Chainring Bolts 5
Chainring Comp. Double
Teeth 36
Material Aluminum
Position Inner
Primary Color Black
Speed 10/11

Product Identifiers

Vendor Item # 371-0236A
UPC 400310060921

Frequently Asked Questions

Is this chainring compatible with 12-speed drivetrains?

No. The FSA Pro Road 36T is optimized for 10- and 11-speed chains. 12-speed chains are narrower and use different tooth profiles, so shifting and chain retention may be compromised.

Will this fit my crankset?

This ring fits cranksets that use a 110mm, 5-bolt BCD. Many FSA, Shimano and third-party road cranks use this standard, but some models have proprietary offsets or integrated toothsets. Confirm your crank's BCD and mounting pattern before buying.

Can I use the 36T as an outer chainring?

It's designed as an inner ring. While it may physically mount in the outer position on some cranks, the tooth profile and ramping are tuned for inner use and will not shift properly as an outer ring.

What torque should I use for the chainring bolts?

Chainring bolt torque is crank-specific, but a typical range is 8–12 Nm. Refer to your crank manufacturer's manual for the exact spec and use threadlocker if recommended by the crank maker.

How do I know when to replace my inner chainring?

Replace when teeth show pronounced hooking, shark-tooth shapes, excessive wear, or if you experience frequent chain drops and poor front shifting. Also replace rings in matched sets if both rings are worn to maintain smooth shifting.

What are the physical weight and shipping size?

The ring ships in compact packaging (approx. 6.7" x 6.6" x 0.2") and the product weight is around 0.15 lb (approx. 68 g).

Buying Guide

When choosing a replacement or upgrade chainring, confirm three things: BCD and bolt pattern (110mm, 5-bolt for this ring), tooth count that suits your riding (36T lowers gear for climbing), and speed compatibility (this ring is tuned for 10/11-speed chains). Matching the inner ring to a correct outer ring is important for crisp front shifting. Prefer CNC-machined aluminum rings for a balance of durability and weight savings. If both rings show wear, replace them together to restore precise ramp engagement and longest drivetrain life. If you're unsure, bring your crank to a shop or reference your crank's manual for exact specs before ordering.

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