DOUG’S YAMAHA YZ100
Built specifically for the Marty Tripes 100c Works Revenge series, Doug Dubach’s 1983 Yamaha YZ100 has a gusseted frame,
CRF450 footpeg mounts, IMS pegs and an aluminum Yamaha IT175 swingarm (stock YZ100 swingarms were steel).
All-American Racers specializes in race cars, but they molded the gas tank, number
plates, chain guide and airbox cover out of carbon fiber for Dubach’s YZ100.
There was a time in American motocross when 100cc moto- cross bikes were an integral
part of the motorcycle marketplace.
Considered “keystone bikes,” the
100cc Hodaka Super Rats, Yamaha
YZ100s, Suzuki RM100s, Penton
Berkshires, Harley Bajas, sleeved-down Honda CR125s and Rickman
Micro kits provided young riders with
thrills. With retail prices that varied
from $500 to $1000, these air-cooled
bikes taught teenagers of the 1970s
and early 1980s how to shift, clutch
and stay on the pipe.
Then, like the dinosaurs, they
disappeared. What killed the 100?
Prices. As suggested retail prices
rose in the 1980s, a family could no
longer afford to buy Junior a 100cc
starter bike when the 125 wasn’t
all that more expensive. The new
entry-level bike became the 85cc
mini-cycle, even though it didn’t
have the full-size charm of the 100cc