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 Post subject: Mystery sprockets
PostPosted: Sun Jun 24, 2018 2:25 pm 
Old School Hero
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Joined: Wed Oct 21, 2009 1:51 pm
Posts: 167
Location: Kingston
I bought a huge box of sprockets at a cycle jumble yesterday. Most are Regina and Maillard which I will sort out and sell on in case people have a use for them.

There was a cassette in there which is unusual and I hope somebody can enlighten me as to what it is. The splines are rounded, not like Campagnolo or Shimano. The teeth on the sprockets are rounded like shark teeth. It's unused, not just worn out.

Attached is a picture of the largest sprocket. It's 8 speed, although I think the smallest locking sprocket is not right for the rest.

Any ideas?


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sprocket.jpg
sprocket.jpg [ 448.38 KiB | Viewed 265 times ]
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 Post subject: Re: Mystery sprockets
PostPosted: Mon Jun 25, 2018 9:51 am 
rBoTM Winner
rBoTM Winner
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Joined: Sat Apr 14, 2012 12:03 am
Posts: 533
Location: Newcastle upon Tyne
Looks like Mavic, Mavic 571?


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 Post subject: Re:
PostPosted: Mon Jun 25, 2018 10:39 am 
Old School Hero
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Joined: Wed Oct 21, 2009 1:51 pm
Posts: 167
Location: Kingston
Thank you! Mystery solved. From the photo on Velobase, it looks like the first sprocket is supposed to have normal teeth rather than the odd shark's teeth.

http://velobase.com/ViewComponent.aspx? ... p;AbsPos=0


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 Post subject: Re: Mystery sprockets
PostPosted: Wed Jun 27, 2018 2:24 pm 
Retro Guru

Joined: Mon Jul 18, 2011 3:49 pm
Posts: 280
Location: midi pyrenees FRANCE
Yep Mavic supposed to ease gear shift & reduced chain slip Not sure but don't think it was any better than std shape profile sprockets


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