Challenger 500 configuration
Frame: Merida patent TFS aluminum alloy frame
Flower drum: formula bearing flower drum
Rim: WTB SX24 double-layer aluminum alloy
Front fork: ROCK SHOX DART 2 shoulder control locking belt adjustment
Finger pulling: Shimano DEORE M530
Tooth plate: Shimano FC-M442 44/32/22
Front pull: Shimano DEORE M530
Pull back: shimano DEORE M53 1
Brake: Shimano M4 15 disc brake.
Handle set: X-mission large-caliber aluminum alloy handlebar
Cushion: WTB
Outer tire: maxxis TT 2.0
Color: Coping black/special red/Shiping gray/Zhu Shi white.
The frame size is 26X 16 inch/18 inch.