RM 12

This green machine has everything your little one needs to have fun: the steel frame and fork will take a lickin’ that only a child can truly master and keep on tickin’, the training wheels allow a child to become comfortable pedaling and braking without falling over, and the moto fender set screams get me dirty. The only question to ask is – how long will this bike stay clean?


  • Hi-Ten Remington Steel Frame / Fork
  • 16 Spoke Rust-Proof 12” Aluminum Rims
  • Diamondback Jr. MX Padded Saddle
  • Diamondback Pad Set & Moto Fenders

Bike Specs

Sizes 12" Boys 
Frame DB Hi-Ten Remington Steel frame w/ 4-stroke "Power Gusset"
Fork Hi-Ten Remington steel
Rear Shock N/A
Cranks 90mm 1-Piece, 28t
Bottom Bracket Looseball
F. Derailleur N/A
R. Derailleur N/A
Shifter N/A
Brake Levers N/A
Brakes Coaster
Cassette 18t Cog
Rims 16h R-1000 Alloy
Tires Comp III style 12x2.125
Pedals Resin Platform
Handlebar Hi-Ten 2-piece 19" wide x 4.75" rise
Stem Steel Quill w/ Alloy Cap
Seatpost Alloy Integrated 25.4mm
Seat DB Jr Padded
Headset Threaded 1"
Colors Green
Chain KMC Z410
Hubset (F) 16h Nutted (R) 16h Nutted, Coaster
Spokes 14g
Grips Soft PVC
Extras Moto Fenders, 2 pc pad set, Training Wheels, Clear coat, Owner’s manual
Note Specifications Subject to Change


Size 12" Boys
Seat Tube Length ** 192.0mm
Standover Height mm
Top Tube Length * 285.0mm
Head Tube Length 100.0mm
Head Angle 69.0°
Seat Angle 71.0°
Wheel Base 575.0mm
Chain Stay Length 235.0mm
Fork Offset 35.0mm
BB Height 193.0mm
Stem Length 40.0mm
Handlebar Width 460.0mm
Crank Length 89.0mm
Seat Post Length 25.4mm
* Measured Horizontally ** Measured from Center