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Discussion Starter #1
I've seen this on a good few early brit bikes and am wondering if a hard ridden (50 hp or so) bike could use a single row primary chain and not destroy it !

If a modern bike can pull wheelys without popping the rear chain it seems to me that a sensibly ridden (no wheelys or dropping three gears while coming down from 100mph ) street bike could manage a single up front without much problem !
 

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I've ridden my pre unit real hard for years with a single row, when it gets worn out I replace it.
Good quality chains are the secret.
 

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Tony just gave you the secret. Use top quality chain. And keep it lubed.
 

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Discussion Starter #4
That's about what I thought , Just thought I would run it by those with a bit more experience with that set up !

Thanks !
 

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I run the same set up at the Salt Flats....I whip the shit out of them. Go through a cheap chain in about 40 miles, then again, I only go full tilt boogie. Only one I ever broke was because it was too tight.
 

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I run a 500 Weslake in a featherbed and a 500 Weslake in my sidecar. Both knock out around 60 HP. Some years ago I bought a 10' strand of 1/2" industrial chain and used it on the Norton. El Mirage is 1.3 miles to the lights. The industrial crap would last one run and it was done. It would stretch and have a number of tight spots. It was around a 1$ a foot.

A couple of years ago I bought the top of the line D.I.D. chain for the sidecar. It ran for two seasons of El Mirage and two Bonneville SpeedWeek meets. Netting six records on the way. And it was still good after all that abuse. I changed it out for this year not because it was shot but just as a preventitive maintenance sort of thing.

As I said earlier, Tony nailed it. DON'T try to cheap out with some crappy industrial chain. Or if you do cut several lengths to carry with you. You'll probably need them.
 

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Discussion Starter #8
Yeah , I got that !

I have no intention of "cheaping out" on the chain (primary or secondary) !

My plan is to find the absolute best possible product to prevent early failure of the drive ! modern metallurgy should at least equal earlier double row as used on unit model Triumphs !
 
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