A brief glimpse at the history of BMX! The 1974 Yamaha Gold Cup... a promotional BMX race series - a.k.a. California State Championship grand finale at the Los Angeles Memorial Coliseum. Old School BMX racing...
Yamaha Moto-Bike Info
Fork Oil Capacity
From bmxsociety.com. – “According to the Moto-bike service manual the right side (spring side) takes 116cc and the left side takes 130cc”.
Moto-Bike Models
Yamaha’s Moto-Bike was made for three years (1974-1976). There are differences between the model years that makes it easy to identify what year a moto-bike was made. A good collection of photos can be found at BMXmuseum.com.
1974 (A Model):
- Solo saddle with “MOTO-BIKE” silkscreened on back.
- Cottered crank
- Rubber pedals
- The lower body portion of the fork was painted to match the frame.
- The rear fender, chain guard & handlebars were chrome plated.
- Serial number is stamped on bottom side of bottom bracket.
1975 (B Model):
- Same as A Model except…
- Banana seat. The top shock mounting point on the frame was lengthened to provide an anchor point for the seat brace.
- The handle bars and the chain guard were painted flat black instead of being chromed.
1976 (C Model):
- Same as B Model except…
- Single piece crank.
- Rat trap pedals
- The fender and chain guard are made of plastic instead of steel.
- The fork legs are polished aluminum instead of painted steel.
- BMX knobby tires instead of the older diamond tread “Tractor grip” tires on the A & B models.
- Serial number is stamped on right hand side of headset tube.