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This caliper cover is made in England to replace Triumph part number 37-4263 and W4263
Replaces Lucas part numbers 200737 & LU200737
AJS & Matchless both Twins & Singles equipped with the Lucas Pre-Focus Light Unit
M Part number is CBS-5010
Etc) from 1972-1981 with the correct Headlight only
Triumph 650 To 750 Twin Big Bore Kit - 1963-72 - 6T / TR6 / T120 Fork Strap This caliper cover is madeEnglish Made Triumph 650 Unit Twins Big Bore Kit. If your seeking more power for your 650 then you have come to the right place! This English made big bore kit comes with everything you need to convert your 650 Triumph to a powerful 750. Yes bumping from a 650 to a 750 does make a BIG difference. Included is an English made 9 bolt cylinder barrel, cast pistons, rings, wrist pins, complete top end gasket set with push rod tube seals, and a copper head