09-01 2015

Principle of helmet protection

Bicycle helmets work by absorbing the impact of collisions. In short, the inner foam layer inside the helmet cushions the impact of the collision on your skull. Traditionally, many...

09-01 2015

What kind of helmet is good?

1. The lighter the helmet, the betterIn contrast, the lighter the helmet, the better. But the lighter the riding helmet, the smaller the chance that it will pass the national safet...

09-01 2015

How to play the vitality board

SNAKE BOARD, commonly known as SNAKE BOARD, is a new favorite of skateboarding. "Snake Board" is a new type of skateboard. It is different from ordinary four-wheeled skat...

09-01 2015

Motorboat development

my country launched the motorboat sport in July 1956, held its first national competition in Wuhan in 1958, and formally joined the International Motorboat Federation in 1981. Chin...

09-01 2015

Golf cart battery requirements

characteristic1. High capacity and high energy density2. Low self-discharge and capacity storage3. The grid is made of lead-calcium alloy, with low water loss and maintenance-free4...

09-01 2015

Harley car production and performance

Harley is bornThe legendary development of Halley is always associated with a specific historical environment. On Independence Day in 1905, a rider riding a Harley motorcycle won a...

09-01 2015

ATV shopping tips

For a newly purchased ATV, what users need most is how to judge whether it is in good technical condition? What is its identification standard? In order to facilitate users to corr...

09-01 2015

China Standard for Electric Bicycles

The four main national standards for electric bicycles are: there must be pedals to enable human riding; the maximum design speed is not more than 20km/h; the mass of the vehicle i...