Os speed .21 piston and sleeve

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Old 01-09-2019, 05:17 AM
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Default Os speed .21 piston and sleeve

Has anyone ever tried the replacement piston sleeve and rod off eBay itís aftermarket and a good bit cheaper
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Old 01-09-2019, 10:56 AM
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????
dove trovi su e bay aftermarket os?
ball bearing??
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Old 01-14-2019, 05:30 AM
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Originally Posted by Bigdawg2251987 View Post
Has anyone ever tried the replacement piston sleeve and rod off eBay itís aftermarket and a good bit cheaper
i have. It's a Taiwan low quality p/s/r with a very high silicon content piston. It'll run but won't last as long as the OS. Rod and bushings wore prematurely on mine.
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Old 01-15-2019, 11:20 AM
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It will probably run but i do not know about reliability,power and ease of tune.
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Old 01-16-2019, 02:12 PM
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Originally Posted by RCAlex187 View Post
It will probably run but i do not know about reliability,power and ease of tune.
I would atleast stay away from there rod. If a piston or liner fails itís just a replacement but if your rod fails in the slightest you end up with a catastrophic destruction inside. Not worth the risk.
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Old 01-16-2019, 03:48 PM
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Originally Posted by Matt Piva View Post

I would atleast stay away from there rod. If a piston or liner fails itís just a replacement but if your rod fails in the slightest you end up with a catastrophic destruction inside. Not worth the risk.
Why be carefull ??????
It was already a worn out motor giving a 2nd life with an alternitive P/S set. And because an offroad is not running high revs even cheap Force/Go/SH rods will work fine.

But is there a link to the P/S set?
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Old 01-16-2019, 07:12 PM
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My guess

https://www.ebay.com/itm/O-S-21-21XZ...0RGm:rk:9:pf:0
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Old 01-17-2019, 01:06 PM
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Nice but not that cheap. With a same price once I bought a 3 port Novarossi P/S/R set.

Here some reviews for what it is worth
https://www.ebay.com/itm/OSM22103030....c100008.m2219
Just 1 whiner about a too tigh pinch
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Old 01-17-2019, 10:33 PM
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Or you could just use a p/r/s replacement set from an Atom engine from Dialed RC. Get the SV-1 set for long stroke Xzb engines or the Vortex for Vzb engines.
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