fork damper rods 1977

The D-model (1977) has 35 mm. forks like later machines, but uses damper rods with extruded tops--all later forks use damper rods with recessed 12-point tops. Race-Tech (the manufacturer whose American design was copied to produce the cheap Chinese knockoff) includes instructions for installation with extruded tops. Since you didn't buy from Race-Tech, I suggest that you ask Mr. Lalonde what to do.

Race-Tech emulators will fit, if you follow their instructions for making adapters. Sorry, but I can't undercut Race-Tech's business by posting their instructions for ethical reasons; I don't like it that an American design has been lifted by people who've invested no thought, spent no R&D money, and have simply parasitized an innovative American firm. Later 12-point recessed damper rods can be installed in your forks, but were not installed in D forks at the factory; see the parts manuals at www.biker.net. I don't trust the emulators from Mike's. The spring is a critical component, and that's just the kind of item re. which the Chinese and Mr. Lalonde are likely to conclude that lookin' good is good enough to sell.

The design is indeed patented. Race-Tech may have been unaware of the situation (at present they are aware). I've been told that there's a loophole in patent law to the effect that there's no infringement if 20% design difference (however that's established) can be demonstrated, but I don't see where that's the case here. Both damper rod types wind up being drilled to the same specs, so no, there'd be no peformance advantage to replacing them, the only advantage would be convenience. Adapters are easily made following Race-Tech's instructions, which are furnished with the valves.

Saintly is as saintly does, my friend. There's no canonization possible while the subject's still upright and sucking oxygen, so the title of St. Mike of the XS650 is still open, and when the time comes for nominations you'll be at the top of my list. (Not to quibble, but don't tell either a Taiwanese or a mainlander that Taiwan ain't China unless you have some real strong kung fu going!)