AEROZINE’S SINGLE-RING set-up is great for lightweight riders looking for a cost-effective upgrade.
The X-ONE uses the same arms as their X12SL but with a single-piece spider/chainring (32 or 34t) mounted on the SRAM style splines. The broad forged crank arms get scooped backs and faceted outside faces with a durable red or black finish (the lettering rubs off quickly though). Reversible pedal inserts let you choose 170 or 175mm effective crank lengths (or 172.5mm if you buy extra inserts).
Concerns about creaking or loosening proved unfounded. Peak power flex from the narrow armed ‘spider’ undermines the adequately stiff arms though, and impacts are best avoided. The narrow-wide teeth also grind at cassette extremes.
Chainring 32t
Weight 555g
Options 24mm only, 68-73mm only, 1x/2x/3x, red/black