• Mar , 12 2020

This design is our totally new idea. It comes from Chinese traditional arch bridges which are strong enough to stand more than 1000 years. With this design, our rim looks like combined with many different small arch bridges. The spoke hole beds are designed to like the piers of the bridge. So the total wheelset is supported by 28 pcs of piers. This makes the rims more impact resistant.

• Mar , 12 2020

Now, most MTB rims are with hookless design because of better impact resistance. Starting from this idea, we still make an improvement. The bead of our MTB rims is also hookless design, but it's not with an equal-thickness from top to bottom. We designed a wider thickness in the bottom to better "support" the impact. This design could improve the impact-resistance around 10%. We also work out a sp...

• Mar , 12 2020

CARBON RIM MID HOOK TIRE BEAD DESIGN For our disc brake specific rim family, we ultimately worked out a Mid-Hook design. With this technology, the rims could be as impact resistant as MTB rims, and they are around 80g lighter than rim brake models. however, they could take much higher tire pressure, as high as 90PSI with a 28C tire.

• Mar , 12 2020

CARBON WHELLS IMPACT TEST This test is mainly for MTB wheels to make sure the rim's impacting strength is qualified. It will required 3 times impact at different position from a required impacting height. Different wheels would have different impacting height requirements. ● Test condition: air pressure 28psi, special shaped steel anvil go to impact the wheel directly from a certain height. The im...

• Mar , 12 2020

CARBON WHELLS BRAKE DISTANCE TEST This test is reflect how the brake track and brake pads perform together. For a good rim brake wheel, we not only demand it to be heat-resistant enough, also wish to have a good braking performace with less noise and shorter braking distance no matter in dry or wet conditions. ● Test condition: Air pressure 120psi, load 100kgf , brake lever tforce 18kg, speed 25km...

• Mar , 12 2020

Inflation test is very important for every rim brake clincher wheels, which usually apply a quite high tire pressure. If the rim could pass this test, it means the rim's structurer is strong&reliable enough, and it will reduce the wheel failure risks greatly.  every each YISHUN rim brake wheels have to pass this test. ● Test Condition: 150psi air pressure, test one time. ● Test Standard: ...

• Mar , 12 2020

Product Carbon triathlon aero tt handlebars Material High modulus Toray T700  carbon fiber Width 42cm (Center to Center) Spacers 10mm, 20mm Steerer tube Diameter        31.8mm Weight 600+-/10g Test Standard ISO4210 Warranty 1 years

• Mar , 12 2020

Product Full carbon aero road handlebar Material High modulus Toray T700  carbon fiber Size 40, 42, 44cm (Center to Center) Reach 84.5mm Drop 128mm Steerer tube Diameter 28.6mm Weight 345+-/10g Test Standard ISO4210 Warranty 1 years

• Mar , 12 2020

An overview of international mountain biking events. UCI Mountain Bike World Cup. The UCI Mountain Bike World Cup is a multi-round mountain bike racing series that is sanctioned by the Union Cycliste Internationale. The first World Cup series – which was composed of cross-country events – was held in 1991. The Downhill World Cup was inaugurated two years later, and the Dual Slalom World Cup was la...