First Look! New Ultra Lightweight Ashima Disc Brake Rotors (Updated)
Ashima is no stranger to lightweight brakes, and now they’ve gone and topped themselves.
UDPATE: Rotor name is Ai2 and will be available in 160mm in January 2012, 180mm follows at end of February. Those are the only two sizes to be offered. Pricing TBD.
UPDATE 2: Pricing will be €32.5 and about $43 USD.
The new design is being launched at Taichung Bike Week but I received an early set in the post today for testing and weighing. Visually, they’re far more chiseled out than Ashima’s AiRotor, which I’ve weighed and reviewed as part of the PCB brake system. And, truthfully, I end up putting them on other bikes to save weight, too. So, how much lighter are they?
The 160mm rotor weighs in at just 65g, making it lighter even than the 140mm AiRotor (69g) and well below the 160mm (86g).
Compared to the original AiRotor (left), this new one has a lower brake track height and leaner overall appearance.
Until they release those dual layer rotors and fan-cooled prototypes, these feather weight rotors are their new top of the line.
The only ones we’ve seen with a lighter (claimed) weight are Scrubs, which come in around or just under 60g…and cost an arm and a leg. We don’t have pricing on these new Ashima ones yet, will update as we find out more.