Few bikes epitomized the forward thinking of Klein’s innovative alloy bicycle frames better than the early 1990s AttitudeJames Huang / Immediate Media
Large-diameter alloy tubes are the norm now but two decades ago, the concept was still going head-to-head with steelJames Huang / Immediate Media
Think integrated headsets, internal cable routing, and one-piece cockpits are modern ideas? Think againJames Huang / Immediate Media
What once was old is new again – internal cable routing was a truly novel feature back in the 1990s and fell out of favor for nearly two decades before coming back into fashion recentlyJames Huang / Immediate Media
Klein frames successfully managed internal cable routing by feeding full-length liners through the frame at the factory for easier setup and maintenance. Owners just needed to make sure they never pulled them outJames Huang / Immediate Media
The oversized theme carried all the way through to the rear endJames Huang / Immediate Media
Cartridge bearings were pressed and bonded directly into the bottom bracket shellJames Huang / Immediate Media
Modern frames with internal cable routing often use larger removable ports to help feed the cables through. Klein instead used liners to simplify the processJames Huang / Immediate Media
Klein was a true innovator when it came to the use of hydroformed tubing. Such complex shapes were essentially unheard of elsewhere at the timeJames Huang / Immediate Media
The chainstays start out square at the bottom bracket shell before going round back at the dropouts. Pressurized fluid was used to push the tube walls outward against a castJames Huang / Immediate Media
The ‘gossamer’ paint job on this Klein Attitude was made by heating the paint with an acetylene torch while it was still wetJames Huang / Immediate Media
