1. A260 is still available in some stores.

A260 vehicle configuration:

The following Zuichi aluminum alloy mountain bikes are similar to the A260, for your reference:

The picture above is: Zuichi A318 -2013 mountain bike, price: 2698 yuan. Features: SHIMANO? 27-speed transmission system, SRAM? Oil disc, locking front fork.

The picture above shows: Zuichi A220-2013 mountain bike, price: 2298 yuan. Features: Suntour? XCT? V4 aluminum alloy shock absorber locking front fork, SHIMANO? 24-speed system.

2. The more speed gears there are, the faster the rider will ride. The purpose of multi-stage speed changes is to allow the rider to adjust the speed according to physical fitness or road conditions. There are more and more Subtle changes in gear selection allow maximum pedaling efficiency. Generally, commuter cars mostly use 10-18-speed gearboxes, while for leisure and sports, it is recommended to have 21-24-speed gearboxes. If you are competing or sprinting, of course you should choose 27-30-speed gearboxes.