RB Concepts .21 S7
03-10-2019 | 04:56 AM
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RB Concepts .21 S7
Hi guys, I've purchased a used RB .21 S7 nitro engine on ebay, Is there any piston/sleeve kit which would be compatible? No luck finding the original RB parts in stock anywhere, since its an old engine by now.
Any help would be appreciated
Any help would be appreciated
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