What level does the Challenger 900 belong to?

[Calvin]

It belongs to the top level in the Challenger series. Below is some introduction about the Challenger 900: 1. Innovation: It is the first time that the thru-axle specification has been introduced to the entire Challenger series. The XTC-SLR series adopted the design of 142 standard thru-axle and 135 quick-release conversion as early as the 16th edition, and supports from SLR4 to 1, while the SLR4 complete bike is roughly equivalent to the Challenger 700 to 800 price range. 2. Configuration: It uses SHIMANO-M506 levers and M447 calipers. Equipped with SRAM's 2*11-speed rear derailleur, hence the 900 is also known as the Trail Terminator.