Table of Contents
Mike Sinyard started Specialized Bicycle Components in 1974 in Campbell, CA, first importing Cinelli parts and later re-branding Japanese road tires. Complete road bicycles started in 1981. Specialized in 1982 was ground zero for the modern bicycle revolution, when sales exploded by an order of magnitude each year for another 4 years. 1) 2) 3)
Specialized started to produce the Stumpjumper in 1981, making it the first mass-production mountain bike. The first Stumpjumper was produced in Japan and was based on a design for a custom-made bike originally marketed by Tom Ritchey, Gary Fisher and Charles Kelly. … The first Stumpjumpers had welded steel frames because the lugged and brazed frames that designer Tim Neenan wanted to use were not available at the time. The original bike had a modified BMX stem and handlebars based on Magura motorcycle handlebars. The bike was equipped with 15-speed Suntour ARX GT gears, originally designed for use on road bikes, and the Stumpjumper also featured Mafac cantilever brakes and a TA Cyclotourist chainset, both designed for touring bikes. … The bike weighed just under 30 pounds. https://en.wikipedia.org/wiki/Specialized_Stumpjumper
Mike Sinyard, 1976 inc.com
1981 Stumpjumper, #75 oldschoolracing
Now with a bi-plane fork and an updated Japanese calligraphy inspired (lightning) logo 8).
1982 Stumpjumper mombat
1984 Stumpjumper Sport
In 1983 Specialized offered a slightly higher component choice in the Sport model. Specs: mombat
1984 Stumpjumper Sport, 17“ frame w/24” wheels bikerecyclery
1985 Team Stumpjumper
Higher component group and nice extra touches on the frame.
1985 Team Stumpjumper bikeforums.net
The Rockhopper was usually a step down and a pound heavier than the Stumpjumper. Full XT components in 1986 show Specialized's commitment to making the best throughout their product line. Shimano Deerhead XT (M700v2 - 1985-86).
1986 Rockhopper boltsbike
The Hardrock was usually a step down and a pound heavier than the Rockhopper. Suntour XC Sport (1987-88).
1987 Hardrock ajhmall
1988 Stumpjumper Epic
The first production carbon mountain bike ever made. Shimano XT (M730) derailleurs and crankset, chainstay brakes. See a full Bicycling mag test review from 1988: bikeforums. $2400, 400 made - and very rare. And photos are similarly rare.
1988 Stumpjumper Epic. Pic from an unknown magazine review. retrobike
Another early attempt to introduce gravel bikes to the masses. It didn't sell and became another “evolutionary dead end.”9) SunTour XCD-6000 (1988-89.)
Specialized had the right idea, but nobody wanted the combo. Yet. classiccycleus
1989 RockCombo classiccycleus
1990 Stumpjumper Epic
M-732 (1989 only - but the 1989 Epic has chainstay brakes.) Specialized claims that their titanium Epic debuted in 1990, but reviews from late 1990 suggest that titanium came out in 1991.
1990 Stumpjumper Epic ajhmall
Stumpjumper Identification Guide
|1981||TIG welded light blue frame, socket fork||SunTour AR, TA crank, Avocet saddle||'5' shaped 'S' logo|
|1982, Mar→Jun||bi-plane fork, blue & silver||SunTour ARX, Specialized saddle||lightning 'S' decals|
|1982, Jun→Nov||lugged frame||SunTour ARX/Mountech|
|1983||doubled frame bosses, light & dark blue, charcoal, silver||SunTour Mountech, Sugino AT crank||bullmoose bars|
|1984||black, blue, grey, silver||Shimano brakes, Sugino TAT crank,||riser bars|
|1985||unicrown fork, black, blues, pink, red||Shimano XT or Suntour XC, Specialized crank|
original logo, 1981
biplane forks, 1982 → 1984
single bosses and lugs, June → Nov. 1982
double bosses and unicrown fork, 1985
. The Birth of Dirt by Frank J. Berto, pages 74 & 89 for 1981 → 1983. Serial numbers suggest 200 sold instead of 100 in 1981. 1984 and 1985 numbers projected from Specialized $18M revenue by at least 1985. See: inc.com. It states $18M by 4th year? Not possible, as 1976 revenue totalled $200k, see: vehiclesf, Stumpjumper Book, page 17.