SRAM Red B2 130mm
SRAM Red B2 53T outer chainring for 11-speed road drivetrains. 130mm 5‑bolt aluminum ring in black, designed to match Red and Red Quarq B2 crank graphics.
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Overview & Technology
Key Features & Benefits
Fit, Compatibility & Installation
Who This Chainring Is For
Key Features
- ✓ 53-tooth outer chainring tuned for 11-speed SRAM groupsets
- ✓ 130mm 5-bolt BCD fits standard road crank spiders
- ✓ Lightweight aluminum construction with precision-machined profile
- ✓ Black finish matches SRAM Red and Red Quarq B2 crank graphics
- ✓ Designed to pair with a 39T inner ring for 53/39 setups
- ✓ Not narrow-wide — requires correct chainline and front derailleur setup
Specifications
Product Identifiers
Frequently Asked Questions
Will this fit my crankset?
The Red B2 53T uses a 130mm 5-bolt BCD, so it will fit crank spiders that use that standard. Confirm your crank's bolt-circle diameter and 5-bolt pattern before ordering.
Is this chainring compatible with 10- or 12-speed drivetrains?
This ring is optimized for 11-speed chains and shifting geometry. It may physically fit other speeds, but for best shifting and wear characteristics use it with an 11-speed drivetrain.
Can I use this as an inner ring or on a double/compact setup?
This is specifically an outer chainring (53T). It is intended to pair with an appropriate inner ring (commonly 39T for 53/39 setups). It is not designed to be used as an inner ring.
Does the ring include chainring bolts?
Chainring bolts are not listed with the product. Use compatible 5-bolt chainring bolts of the correct length for your crank spider and chainring stack height.
How durable is the finish and material?
The ring is made from aluminum with a durable black finish to match SRAM graphics. Aluminum provides a good stiffness-to-weight ratio; normal wear will occur over time depending on riding conditions and maintenance.
I have a Red Quarq power meter — will this match visually?
Yes. The Red B2 black finish is produced to match the Red and Red Quarq B2 crank graphics for a cohesive look when installed alongside Quarq power meter-equipped cranks.
Buying Guide
When choosing a road chainring, first confirm bolt-circle diameter (BCD), bolt count and target drivetrain speed. For SRAM Red B2 53T, you need a 130mm 5-bolt crank spider and an 11-speed chain for the best shifting performance. Match your outer ring size to the inner ring and your front derailleur capacity to avoid chain rub and ensure correct chain length. Material and tooth profile affect weight, stiffness and shifting feel. Aluminum rings like this offer excellent stiffness-to-weight balance and a clean aesthetic match to OEM cranks. If you ride mixed surfaces or need extra chain security, consider narrow-wide profiles or dedicated chain retention hardware instead.
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