Different bicycle manufacturers seems introduce a lot of new products and new technology every year, it looks like that it is difficult to keep up with the bicycle trend. However, real innovation is rare, and now these new marketing concepts and technology are actually those historic technology .
In recent years, the disc brake appear a lot on the road and develop gradually, but the mountain bike has been using disc brakes for 20 years.in fact, if you check carefullly, you will find some travel bike has been using it 40 years ago. In the middle 1970s, Shimano developed the mechanical disc brake BC-300 and sold the specific hydraulic disc brake BC-200 for bicycle.
In the same period, there are brands such as Phil Wood and BridgeStone also joined the disc brake market.
Prior to this, Schwinn use mechanical disc brake in the Manta-Ray stroller, During 1970s,when muscle car and modern fashion is popular, lever speed, rubber cushion, anti shock front fork and bald tires have been appeared.
Nowadays,synchronous speed is just like a basic feature of Shimano Di2, which allows the rider to control multiple transmissions through a finger, this design appeared in the 1990s and was still a relatively obscure product. The system uses a single dial to control front dial and rear dial of 24 or 27 speed bike, the two outlet holes show the shift mechanism link the front and rear dial through the internal complex mechanical structure.
3.Anti shock front fork
Although it can not be concluded that this is the first anti shock front fork, but this is definitely the first patent which can be checked for telescopic anti shock front fork (rather than connecting rod), GW Sage designed this front fork in 1922, It uses a telescopic structure, and the spring were hidden in the tube, it has been very close to the current suspension front fork design.
4.Super wide tire with super wide rims
In the past few years, the tires and rims in the bike began to grow in the direction of width, it seems we can see “Plus” signs everywhere, but as early as 15 years ago, Nokian had produced a 3 inch width DH exterior tires, named Gazzaloddi.
For the wide rim, it is generally believed that the width should be about 33 mm, and during that time Sun Ringle has produced, 46 mm width exterior DH rim.