Oval 1x chainring · 130 BCD
ALUGEAR Oval 1X AERO Chainring for 130 BCD 5-Arm Cranks
A lightweight AERO-machined 12% oval narrow-wide 1x ring for 130 mm BCD five-arm road and gravel cranks, offered from 40T right up to 60T. A smoother-feeling pedal stroke for riders converting to a single-ring drivetrain.
Highlights
Why we rate it
Narrow-wide teeth
Alternating thick and thin teeth hold the chain securely on a 1x drivetrain, keeping noise down and reducing the risk of dropped chains.
CNC-machined 7075-T6
Milled from high-strength 7075-T6 aluminium and hard-anodised, so the ring resists knocks and wear and keeps its finish.
AERO lightweight design
Slim, heavily machined arms strip out weight while ALUGEAR's testing keeps impact strength where it matters.
12% oval profile
The ring is effectively smaller through the dead spot and larger through the power phase, helping smooth your pedal stroke on long climbs and rough gravel.
Best with a clutch mech
For the most secure 1x setup ALUGEAR recommend a clutch rear derailleur and a fresh chain fitted with the new ring.
Tech specs
Specification
Manufacturer specification. Details may change without notice.
Specification
- Shape
- Oval (12% ovality, 108° timing at TDC)
- Mount
- 130 mm BCD, 5-arm
- Tooth range
- 40T–60T
- Tooth profile
- Narrow-wide, 1x only
- Diameter
- 40T 178 mm; 42T 186 mm; 44T 194 mm; 46T 202 mm; 48T 210 mm; 50T 218 mm; 52T 226 mm; 54T 234 mm; 56T 242 mm; 58T 250 mm; 60T 258 mm
- Material
- 7075-T6 aluminium, CNC machined, hard anodised
- Compatible chains
- Shimano 11/12-speed; SRAM Flattop 11/12-speed; KMC
- Fixing
- 6.5 mm chainring bolts (not included)
- Not compatible
- 2x double setups; front derailleurs
In the box
- Includes
- 1x chainring
Ordering
Available from The Cycle Collective
Made to order by ALUGEAR. For availability, lead times, sizing or compatibility advice, call 0203 148 6764 or email hello@thecyclecollective.cc.