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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Old 01-28-2019, 09:19 AM
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Iíve used Arrow rods in my Nibja BX-02 engines with excellent results, same as when I tried the identical rod in my original version XZB speed. Canít say anything about pistons or sleeves, as Iíve not tried them, but definitely the Arrow brand rods and also their carb o-ring kits are imho near identical quality to the OS Speed parts and at least 1/2 their price.

If youíre interested, Iíve got a genuine OS Speed rod still bnip and also a p/s for an original version XZB Speed which Iím happy to sell at a decent price. Just pm me and Iíll put up an ad for you in the for sale section if you like.
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