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Appetite for dirt

For real mountain bike performance, the Bolt and Thumper are bang on! Their aluminum frames and quality components will satisfy every kid’s taste for dirt. With their 50mm of travel — more than most! — the Spinner forks offer real damping performance. Plus, their stable geometry ensures these bikes are easy and safe to ride. Even the cranks and saddles are sized specifically for 20” bikes, so you know the fit is as good as the ride.


  • 50mm spinner fork has more travel and better damping for real trail performance
  • Double-wall alloy rims and Kenda Smallblock 8 tires are light, tough and durable
  • Youth-sized components deliver on fit and safety


Frame Opus 6061 Aluminum
Fork Spinner Grind 50 mm
Sizes 20"
Colours Lightning Black

Weight 23
Shifters SRAM 3.0 Twist 7
Front Derailleur n/a
Rear Derailleur SRAM X3
Brakes Tektro V-Brake
Brake Levers Tektro Alloy
Crank Samox Alloy 127 mm
Chainrings 36
Bottom Bracket 5 pc Steel
Cassette Shimano Tourney 14-34
Chain KMC Z51
Headset VP Semi-Integrated
Handlebar Opus Junior 25.4

Stem Promax 60 mm 15°

Grips/Tape Opus Kraton
Saddle Opus Junior
Seatpost Opus Junior 27.2 x 300

Wheels/Rims Alex ACE 20
Hubs Joytech
Tires Kenda Smallblock Eight 20 x 1.75
Pedals Wellgo Resin



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