Triumphrat

R100Pilot

Okay, so the owner's manual shows the rear axle nut as 110 nm, but nothing else of any use.

So a couple of questions:

What size sockets do I need for the front sprocket and axle nut? What are the torque specs for the front sprocket? What are the torque specs for the rear sprocket?

I know these get asked over and over - maybe we need a tech FAQ sticky?

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Will

Now I am going entirely from memory! The rear axle nut is 27mm and the front is a 17mm allen head. Front torque is 65 nm (I think) and the caliper bolts are something like 35nm. I hope somebody will correct me if this is wrong, since I haven't had a TT600 manual for about two years.

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Will
It's a squid thing. You wouldn't understand.
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R100Pilot

Hmmm... good start...

Front sprocket size and torque? How about the bolts holding the rear sprocket to the wheel?

I'm just thinkin' - there are a lot of common maintenance specs that would be handy to have at hand.

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"I hate to advocate drugs, alcohol, violence, or insanity to anyone, but they've always worked for me."
— HST

x1wagner

14/42 or 15/45 depending on the vintage of your machine. They upgraded the front to compensate for the shabby wear strips they used.

35 sounds right, but why in my mind do I think it's 37? Will's probably right. I think the rears are 12's or 13's and locknuts, so torque isn't as critical. Maybe 30 ft lbs.

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Will

I don't recall the countersprocket information at all. Sorry, it is just gone. The nut is huge, and I never bothered to pull it myself, mostly because I didn't have a sprocket big enough. Torque is high, but it isn't as high as I would have expected. I sure hope somebody who knows can chime in.

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Will
It's a squid thing. You wouldn't understand.
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B02S4

IIRC the countershaft nut is 36mm & somewhere around 100ft.lbs. torque.

Moffat

I'm just about to do my 04 speed four sprockets and I measured the diameter of the front sprocket nut and I read it as 36mm - I'm also keen for conformation from someone who's done it cause I need to buy a socket to fit - real soon.

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Moffat.

most commonly asked question from my friends - "have you got you bike back from the shop yet?" - "why don't you get a Ducati" - "bit wet out there hey"

R100Pilot

Yeah, I have the chain and sprockets ready to go on. Just tryin' to figure out what size socket to buy for the front sprocket and how much to torque it (and the rear) when the new one's on. Somebody 'round here must have a service manual.

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"I hate to advocate drugs, alcohol, violence, or insanity to anyone, but they've always worked for me."
— HST

B02S4

Per the manual the front sprocket torque is 132Nm & rear wheel axle is 110Nm

1 newton meter = 0.737562149 foot pounds

(you do the math)

You can get a 36mm socket in just about any autoparts chain store - look for a hub socket & you'll save a few bucks, & the socket should last you a couple of lifetimes.

Yak

Assuming we are talking about a TT600/S4

I believe that BS024 is correct. I just did this change myself. The front C/S sprocket is a 36mm. My stock CS nut was outrageously tight. I had to use a floorjack handle over a breaker bar to get it loose. Im not convinced that you need 132Nm of torque on that nut, regardless of what the manual says. I took it to little over 90 Ftlbs and a litle extra tweak, that was quite a bit. With the safety washer folded over, its not going anywhere any time soon.

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2005 Triumph Speed Four - Yellow