hello stephen,yes your right the trusts are about 1.mm so has approx 1.5mm clearence,these thing only happen to me, i will be launching this mc16 lump back at the supplyer,,,,,,,,,,,,good bottom end,straight fit, ,,,,,mmmmmmmmmm were to find an mc18 bottom end,i honestly think ive got more chance of winning the lottery,,,
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NSR250 MC18