Claiming to be the lightest dual-leg energy meter crankset in the marketplace, the brand new Rotor 2INpower SL crankset retains their ultra-slim kind issue and machines away all further steel to hit simply 530g for 170mm arms with a BB30 spindle. That’s 15% lighter than the prior model, with out giving up any efficiency.
Pair it with their 50/34 chainrings and it’s simply 729g, or combine and match from any of their spherical and oval direct-mount 1x and 2x chainrings (or 104BCD spider) to get the precise gearing you need.
Rotor’s crank arms are machined from 7075-T6 aluminum, then drilled out from the ends to take away extra materials contained in the arms. For these, they machined slightly further from the sides, too, and the arms are barely shallower than the non-SL model.
In comparison with their non-power meter cranksets with a completely modular system with swappable spindles, these have the spindle completely hooked up to the driveside because it homes the battery.
It will get a brand new self-extracting mounting bolt to make set up and removing simpler, with a safer bolt on the bottom to connect the chainring or spider.
Hiding beneath a mud cap is a chargeable battery good for 250 hours and totally recharges in 3 hours, utilizing a magnetic cable attachment. All electronics are sealed inside with an IP67 mud/waterproof score and working vary from -20ºC to 50ºC (-4ºF to 122ºF).
They boast +/-1.5% accuracy with spherical or oval chainrings, and their app exhibits superior pedal stroke and torque information past what your GPS biking laptop can show. The app can also be used for OTA firmware updates.
The antenna sits off the again of the driveside arm to keep up their slim profile, speaking through Bluetooth and ANT+ to any trendy head unit. The cap on the non-drive aspect merely retains particles from accumulating within the three holes drilled down the size of the arm.
Rotor’s light-weight one-piece 2x chainrings are available in a ton of appropriate chainring combos, together with new 12-speed tooth profiles to suit each Shimano and SRAM Flattop chains. with loads of 1x choices for gravel, too. They’ve a slender 147.5mm Q-factor and are available in 165/170/172.5/175mm arm lengths.