Looking for an inexpensive rig to go big at the trails? Go buy a Bump, Knucklehead! 100% Cr-Mo frame, machined head tube, 5mm thick drops. Cr-Mo threadless fork with welded star nut. New GT forged Cr-Mo 3-pc crankset. GT Mohawk 48H hubs, 14mm rear axle. New GT Launchpad jump saddle. New bolt-on Johnson stem clamps your bars like a pipe wrench. Flame cut dropouts will save your freewheel. Super-plush LaunchPad saddle with massive welded seat rails will save your butt.
Headset Size
1 1/8"
Seatpost Size
31.6mm
Top Tube Size
20.75
Original Colours
S9X00000 S0Y00000
Made in Taiwan.
Second digit in the serial indicates year of production. 1999 or 2000. Third digit in the examples above indicates production month - In a real serial X will be a letter A to E (Jan to May). In a real serial Y will be a letter F to L (Jun to Dec).
Bikes made in Taiwan usually had an 5-8 month production and shipping timeline before they were sold in bike shops around the world. Bikes welded in the later months of the year would normally be made for the following year.