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Product Description
For the original BT-70, and works with my engine bells for 18mm motors.
IMPORTANT: The rings for the engine mount two engine cluster, are canted. To mate with this part, engine hole spacing within each mount ring is as follows:
ring 1 forward ring = .253 "approx.
ring 2 aft ring = .417" approx.
This is based in conjunction with use of BT-70 coupler for Gemini Titan #K-21 kit specs.
Use with others part manufactures ring design will likely not fit without modifications.
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