don't be tempted by the pretty gold colour....sprocket - SV650.org

rictus01 · 21-06-12, 12:43 AM

As some will know the (new to me) Aprilia pegaso has been going through some checking and servicing, the chain and sprockets needed changing and were done as promptly as I could get them, the rear sprocket was a Renthal gold "hard anodised" one, I've used alloy sprokets before on small trials bikes but never on anything bigger, I won't be doing so after seeing the state of this one.

And just in case you can't see how badly the profile has worn, here's a new steel one below for comparison.

you have been warned.....

Bibio · 21-06-12, 01:01 AM

no no, you have it wrong those are the new anti-wheelie design.

21-06-12, 05:43 AM

I don't think you're supposed to use a sawmill blade for a sprocket. How long had that been on the bike?

21-06-12, 05:45 AM

Holy crap, that's wore the hell out of that.

I've never used the alloy ones but I've always wondered they can't possibly be as strong /durable.

rictus01 · 21-06-12, 06:49 AM

Quote:

Originally Posted by rictus01

As some will know the (new to me) .

Quote:

Originally Posted by Eulaca

How long had that been on the bike?

I've no idea, but it wasn't OEM and even badly looked after the originals should have lasted 12,000 or so (conservatively), then it could only have been on for a maximum of 6,000 miles at most by my reckoning.

21-06-12, 07:18 AM

I'm surprised you got any drive out of that....

On a side note, you cannot assume that the C&S was previously replaced because of wear, on the tarty Street Triple forum people change out C&S's regardless of age or wear just because they want a shiny gold one!

rictus01 · 21-06-12, 07:39 AM

anything is possible, but as the person I bought it from was the second owner and had only done 4,000 miles in the first year (just commuting) and 246 miles in the second that he owned it (spend most of the year parked up as he moved and started taking the train to work), I doubt he's the type to "fashion" change things.

Geodude · 21-06-12, 07:47 AM

Oh dear that looks dodgy, how did the chain not jump off those gums. What do you recommend as a good make Rictus?

rictus01 · 21-06-12, 08:07 AM

the chain didn't jump because it had plenty of adjustment left in it and the chain was still fairly good, I "bow stringed" a bit, not something I'd normally do or recommend (but I knew I was changing the whole lot anyway), but it did the job the steel chain dug into the alloy and it got tightened every other day.

just the standard steel JT sprocket will do, or if you're really flush and want the flash look get the stealth type ones (alloy centres and steel tooth ring).

Cheers Mark.

Geodude · 21-06-12, 08:13 AM

Cheers Rictus as usual your advice goes into my biking notebook

21-06-12, 12:43 AM	#1
rictus01 Member Mega Poster Join Date: Jul 2003 Location: South London Posts: 9,799	don't be tempted by the pretty gold colour....sprocket As some will know the (new to me) Aprilia pegaso has been going through some checking and servicing, the chain and sprockets needed changing and were done as promptly as I could get them, the rear sprocket was a Renthal gold "hard anodised" one, I've used alloy sprokets before on small trials bikes but never on anything bigger, I won't be doing so after seeing the state of this one. And just in case you can't see how badly the profile has worn, here's a new steel one below for comparison. you have been warned..... __________________ Life should not be a journey to the grave with the intention of arriving safely in a pretty and well preserved body, but rather to skid in broadside, in a cloud of smoke, thoroughly used up, totally worn out, and loudly proclaiming, 'Wow! What a Ride!

21-06-12, 01:01 AM	#2
Bibio Member Mega Poster Join Date: Jul 2008 Location: here as devil's advocate Posts: 11,559	Re: don't be tempted by the pretty gold colour....sprocket no no, you have it wrong those are the new anti-wheelie design.

21-06-12, 05:43 AM	#3
Eulaca Guest Posts: n/a	Re: don't be tempted by the pretty gold colour....sprocket I don't think you're supposed to use a sawmill blade for a sprocket. How long had that been on the bike?

21-06-12, 05:45 AM	#4
Specialone Guest Posts: n/a	Re: don't be tempted by the pretty gold colour....sprocket Holy crap, that's wore the hell out of that. I've never used the alloy ones but I've always wondered they can't possibly be as strong /durable.

21-06-12, 07:18 AM	#6
injury_ian Guest Posts: n/a	Re: don't be tempted by the pretty gold colour....sprocket I'm surprised you got any drive out of that.... On a side note, you cannot assume that the C&S was previously replaced because of wear, on the tarty Street Triple forum people change out C&S's regardless of age or wear just because they want a shiny gold one!

21-06-12, 07:39 AM	#7
rictus01 Member Mega Poster Join Date: Jul 2003 Location: South London Posts: 9,799	Re: don't be tempted by the pretty gold colour....sprocket anything is possible, but as the person I bought it from was the second owner and had only done 4,000 miles in the first year (just commuting) and 246 miles in the second that he owned it (spend most of the year parked up as he moved and started taking the train to work), I doubt he's the type to "fashion" change things. __________________ Life should not be a journey to the grave with the intention of arriving safely in a pretty and well preserved body, but rather to skid in broadside, in a cloud of smoke, thoroughly used up, totally worn out, and loudly proclaiming, 'Wow! What a Ride!

21-06-12, 07:47 AM	#8
Geodude Member Mega Poster Join Date: Jun 2009 Location: Durham Posts: 2,673	Re: don't be tempted by the pretty gold colour....sprocket Oh dear that looks dodgy, how did the chain not jump off those gums. What do you recommend as a good make Rictus? __________________ Black naked 1999 sv650 which im trying to keep happy Custom paintwork *Saragon Customs* Spray painting *Electrical fault finding guide* and *Regulator rectifier test* Only a biker knows why a dog sticks his head out of a car window.

21-06-12, 08:07 AM	#9
rictus01 Member Mega Poster Join Date: Jul 2003 Location: South London Posts: 9,799	Re: don't be tempted by the pretty gold colour....sprocket the chain didn't jump because it had plenty of adjustment left in it and the chain was still fairly good, I "bow stringed" a bit, not something I'd normally do or recommend (but I knew I was changing the whole lot anyway), but it did the job the steel chain dug into the alloy and it got tightened every other day. just the standard steel JT sprocket will do, or if you're really flush and want the flash look get the stealth type ones (alloy centres and steel tooth ring). Cheers Mark. __________________ Life should not be a journey to the grave with the intention of arriving safely in a pretty and well preserved body, but rather to skid in broadside, in a cloud of smoke, thoroughly used up, totally worn out, and loudly proclaiming, 'Wow! What a Ride!

21-06-12, 08:13 AM	#10
Geodude Member Mega Poster Join Date: Jun 2009 Location: Durham Posts: 2,673	Re: don't be tempted by the pretty gold colour....sprocket Cheers Rictus as usual your advice goes into my biking notebook __________________ Black naked 1999 sv650 which im trying to keep happy Custom paintwork *Saragon Customs* Spray painting *Electrical fault finding guide* and *Regulator rectifier test* Only a biker knows why a dog sticks his head out of a car window.

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