Noted as the first mass-market car with an aluminium chassis, all A8 models have used this construction method co-developed with Alcoa and marketed as the Audi Space Frame.
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The air shaft clutch can save much energy for every enterprise. Clutch connected and released, so as to prevent the driving motor start and stop frequently, then prolong improve the working efficiency and prolong motor usage life.
1, titanium fat pinion bike frame with 44mm bigger head tube;2. handing brush finished with sliding dropouts;3. Inner line routing;4. This time we can use Pinion, Bosch motor bracket, and Shimano steps with gearbox/e-bike standard size.All our titanium bi
Electric folding bike introduction The folding bicycle model prevailing this year, a perfect combination of power and beauty! New design + micro creation + strong power. It can be folded at your will. To be flexible and portable, it also has a strong sens