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Reed Valve Kit - Rock Solid Engines - 80cc, 70cc, 66cc, 60cc, 48cc,

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Reed Valve Kit - Rock Solid Engines - 80cc, 70cc, 66cc, 60cc, 48cc,

Post by Fabian on Sat Mar 24 2012, 23:20

Just ordered two of these CNC machined reed valve kits from Rock Solid Engines.

Compared to the Arrow Motorized Cycles reed valve kit, they look like a much better designed item; much more compact and have it in spades in the looks factor.

Check it out on their website:


http://shop.rocksolidengines.com.au/index.php?page=shop.product_details&flypage=flypage.tpl&product_id=286&category_id=15&option=com_virtuemart&Itemid=1

My installation pictorial is here:
http://motorizedbikeforum.the-talk.net/t209-rock-solid-engines-reed-valve-installation#332




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Re: Reed Valve Kit - Rock Solid Engines - 80cc, 70cc, 66cc, 60cc, 48cc,

Post by JaguarCDI on Mon Apr 01 2013, 09:03

It is a very well designed item although its equivalent flow area is equal to a 15mm carb which is fine for a 48cc but a bit limiting for a 69cc. For high performance the Arrow reed valve is probably better although I haven't tried it. The extra compressible area it gives lowers the crankcase compression ratio to lower than low so I don't know how detrimental that is to the high rpm power. But it has a large flow area.

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