Shopping for a high-quality bike for mid-sized riders is no laughing matter, as there are tons of features to sort through. Fortunately, Diamondback has stepped to the plate with the Joker 20-inch BMX bike, which provides smiles for everyone involved. The Joker is outfitted with such quality features as a Hi-Ten steel frame and fork, tubular chromoly three-piece cranks, DB Sound alloy platform pedals, 48-spoke alloy wheels, Tektro 907 U-brakes, and an FSA 1-1/8-inch threadless headset. In all seriousness, the Joker is one of the best entry-level freestyle bikes on the market.

Specifications:

• Geometry: 74-degree head tube, 70-degree seat tube, 19.5-inch top tube, and 14-inch chain stay
• Frame: Hi-Ten steel with welded ORYG tabs, dual cable routing
• Fork: Hi-Ten steel 1-1/4-inch OD legs, 1-1/8-inch threadless steerer, U-brake mounts, 6mm dropouts
• Headset: FSA 1-inch threadless
• Handlebar: Hi-Ten steel 2-piece, 25 inches wide by 7.75-inch rise
• Grips: DB team "no-flange" with plastic bar end caps
• Stem: 4-bolt alloy top load
• Brakes: Tektro 907 U-brakes with SST DC amplifier, soft compound pads
• Brake levers: Tektro 2-finger
• Cranks: 175mm tubular chromoly 3-piece with 8-spline BB axle
• Sprocket: 44t steel
• BB: Loose ball with 8-spline 19mm axle
• Pedals: DB Sound alloy with molded traction pins, chromoly axle
• Rims: 48H aluminum, 30mm wide, black, brushed side walls
• Hubs: 48H steel shell with 14mm axle (front and rear)
• Chain: KMC Z410, 1/2 by 1/8
• Freewheel: 16t
• Tires: DB cellblock, 20 x 2.1
• Spokes: Black 14g
• Seat: DB driver's seat
• Seatpost: 25.4mm steel pillar
• Extras: Soft compound brake pads, SST DC amplifier and ORYG, 2 pegs

I bought this bike for Christmas for my cousin. He loves the bike so far and it seemed more than capable of dealing with my 240lb weight, so it should do quite well with a 10 year old.

There was an adjustment nut missing for the ORYG that a local bike shop gave me, other than that, putting it together was a snap.