Carbon Fiber: Toray T700SC – 12000 – 60E

TWIST: NO TWIST

SIZING: TYPE “6”

THE AVERAGE PROPERTIES OF THE LOTS ARE LISTED BELOW:

K1218C2 5470 [558] 236 [24.1] 2.3 1.80 803 0.2
LOT NO. TENSILE

STRENGTH

MPa

[kgf / mm2]
TENSILE

MODULUS

GPa

[103 kgf / mm2]
ELONGATION

%

DENSITY

103 kg / m2

YIELD

tex

SIZE

AMOUNT

%

RIM-MATERIAL-DEVELOPMENT-YISHUNBIKE_07  YISHUNBIKE

NANO GRAPHENE EPOXY SYSTEM
FOR SUPERLITE MTB RIMS

We mix nanographene powder into the epoxy.

It’s efficient to improve the epoxy structure strength by around 25%.

The key technology is to make sure that the graphene powder is distributed evenly in every tiny corner.

The disadvantage is that the product would become less heat-resistant.

SO ALWAYS KEEP THE RIMS WITH NANO GRAPHENE INSIDE AWAY FROM ANY SUSPICIOUS HIGH-TEMPERATURE SOURCE.

ELASTIC AND IMPACT RESISTANT EPOXY SYSTEM FOR ROAD DISC BRAKE AND STRONG MTB RIMS

Nano graphene is good, but has limits.

So we bring in another epoxy system for our road disc brake and strong mtb rims.

The purpose is good for impact, and stable, without limitations.

This epoxy system is also applied to produce most of our other product lines.

RIM-MATERIAL-DEVELOPMENT-YISHUNBIKE_11  YISHUNBIKE
RIM-MATERIAL-DEVELOPMENT-YISHUNBIKE_15  YISHUNBIKE

HIGH-TEMPERATURE EPOXY SYSTEMFOR RIM BRAKES

For rim brake, the extremely high temperature generated from hard braking is always the worst killer for rims, causing around 80% rim failures.

The braking temperature would be high to 350~400 degrees during a long descending hard brake.

But normal epoxy could only take a max of 150 degrees for a while.

So we developed a special heat-resistant epoxy to handle this issue.

Although it brings out more challenges and difficulties for manufacturing, it does reduce the braking failures very remarkably into a rate around 0.2%~0.4%.