The bicycle (used) has been very lightly used, mostly standing still. Front and rear brakes are perfectly fine. Its size is 20 inches, suitable for children. The 7-speed gear is fine. __________________________ COZON Midi 20" Kids Bike – Aluminum Frame with Disc Brakes and Front Suspension Brand: COZON Model: Midi 20" Frame Size: 20 inches Frame: Aluminum Suspension: Front Number of Speeds: Front 1 / Rear 7 (1x7) Shifter: Shimano Tourney Brakes: Front and Rear Tektro Disk Tires: Kenda 20 x 2.35 Please do not undervalue the item, and its price is as you see on the website. I will not disappoint the serious buyer, God willing. Contact via WhatsApp and the app.