Lambretta and Vespa hydraulic disc brake kits

Nov. 19, 2009, 7:31 AM

ScootRS vs. sand cast copies

Some informed commentary below about our hydraulic disc brake kits and the sand cast SPAQ/Sterling copies. See all the photos and judge yourself.

Why would anyone pay the same price for a low-end copy as for our high-quality high-pressure cast original for Lambretta which includes anti-dive and a stainless steel braided hose? The same question applies when considering low-end Vespa kits vs. our high-pressure cast Vespa disc brake kit.

Some responses:

  • I'd go for ScootRS every time.
  • I've run 2 ScootRS outboard discs for over 5 thousand miles each. I'd not hesitate in buying another.
  • I have recently fitted a Sterling/Spaq kit to a bike i was working on and looked over a new ScootRS kit with anti-dive close up. even with the import duty sting, they worked out about the same price. if it was my money i'd be ordering direct from ScootRS. i have been using a ScootRS on mine for 9000 miles, no problems at all.
  • Sterling can be dangerous copies of Lambretta parts IMO. Also used by the not so well known dealers in the UK.
  • >>Dealers I find will also try and sell you what they have on the shelf Use a good dealer and they wont have the crap on the shelf to sell you in the first place ;) Having fitted the two [types] for customers for me the ScootRS one is the better made, when stripping the coating off you can see how good the casting is.
  • I've got a Sterling on my Series II. I didn't even know the difference with a ScootRS and Sterling until I read posts here on other threads. I am from Ireland and I bought mine from ShopX, who are a well known dealer.
  • I would imagine your best bet would be to get a disc brake directly from ScootRS.

Be sure to pop up the extra photos on the right and judge for yourself.

Why care about this issue?

  • (Posted by a UK shop owner:) If you're buying make sure you get the ScootRS type (pressure cast) as opposed to the Sterling/SPAQ type (sand cast) - we have seen one of the pepperpot style with holes crack on the thinnest part of the hub and also a standard outboard one crack the mounting lugs (which resulted in the wheel rim parting from the hub after it happened) - both were Sterling/SPAQ - just thought I'd better share this info with you.
  • As a tool engineer who has had over 1000 pressure dies cast for all materials in 20 years I would never ever ever fit a sand cast part to a turning hub and use it at speeds over 5 mph.

Whenever ordering overseas, no matter where, be sure to ask exactly who made the item. You don't want to get stuck with an inferior sand cast copy at your expense.


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