Just In – Ashima Flo-Tor and AiNeon Rotors

by Brian Mullin on October 17, 2013

I first saw the Ashima
Flo-ToR rotor at the 2012 Interbike show when I met up with their main
man Wayne Moore, and its an actual floating design with around .3mm of
float. It uses a surfaced stainless steel outer ring attached to a
colored aluminum spider, and they’re connected together with an
innovative outer aluminum nut with an inner steel bolt to maximize heat
transfer. It is meant as an All Mountain rotor, and will come in 160mm,
180mm and 203mm sizes. I recently got a set of black 180s in for
testing, and they measured at a respectable 132 grams, which isn’t bad
for a beefy fuller surfaced All Mountain rotor. I am really looking
forward to tossing these on my Shimano SLX system and see how they work.

Impressions
=> I stuck the Flo-Tor on my Ibis Mojo HD using the Shimano SLX
brakes. After a short break-in period of getting the rotors and brake
pads synced in with each other, I have been pretty happy with the results.
Not a single bit of fade nor heat issues, even on long descents, and
they have better modulation. I could feather the brakes much more than
when using the default SLX rotors, which made for nice technical
maneuvering. They weren’t as grabby and were fairly quiet, and when they
got wet, they dried out quickly, with only a hint of a squeal. I am
looking forward to some more quality time on these excellent rotors.

The
AiNeon is a two-piece brake rotor that is comprised of a high grade
SUS410 stainless steel outer ring attached to a colored Aero grade
7075-T6 heat treated aluminum alloy spider. Wayne switched his design to
use an aluminum connector, instead of steel, for better heat transfer
between the different materials. The use of the aluminum carrier and
their lightweight rotor design, keeps the weight at a light 90 grams for
a 180mm size (measured), making it one of the lightest two-piece rotors
on the market. According to Wayne, the power should be comparable to
their AiRotor, with improved heat management due to the higher
conduction rates of the aluminum spider, which he measured at
approximately 100 degrees. The outer ring looks exactly like their new
Ai2 rotor, with the same cutouts and wavy braking surface. In another
weight saving design, one version uses just three rotor bolts, which is a
practice done by many weight weenies, and many pro riders. The AiNeon
will only be available in 160mm and 180mm sizes, with Red, Blue, Black
and Gold aluminum spiders. I might try these lighter rotors out on my
29er Ibis Ripley?

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