Bonhams : 1959 BSA 646cc A10 ISDT Replica Frame no. FA7 16419 (see text) Engine no. DA10 7543
1959 BSA 646cc A10 ISDT Replica Frame no. FA7 16419 (see text) Engine no. DA10 7543

This lot has been removed from the website, please contact customer services for more information

Lot 322
1959 BSA 646cc A10 ISDT Replica
Registration no. 965 GKO Frame no. FA7 16419 (see text) Engine no. DA10 7543

Sold for £ 4,600 (US$ 5,858) inc. premium
1959 BSA 646cc A10 ISDT Replica
Registration no. 965 GKO
Frame no. FA7 16419 (see text)
Engine no. DA10 7543
Bob Gardiner built this A10 'ISDT Replica' in the mid-1980s having been inspired by the picture of Eric Chilton's works A7 ISDT twin in Don Morley's book Classic British Trials Bikes (page 87). He already had the donor bike, an A10 bought around 1973. Bob began by overhauling the engine, which was reassembled with standard pistons and cams and the alloy cylinder head from an A7, and fitted a wide-ratio trials gearbox. The 2-into-1 exhaust pipes are standard Rocket Gold Star, feeding into a modified A10 silencer. The wheels are 21" (front) and 19" (rear), shod with trials tyres, while the '59 A10's full-width hubs have been replaced with more appropriate single-sided items (as first built the original hubs were retained).

The fuel tank is an aluminium item and the seat is from a BSA scrambler, while the air bottle carrier, chain oiler, chain guard, and modified primary chain case are copies of those used on BSA's works machines. The oil tank and primary chain case filler caps are early A7 rocker caps, a recognised factory practice. Bob completed the initial build in 1986 and used the ISDT Rep as his principal road bike.

The accompanying file contains an old-style continuation logbook (issued 1969); sundry bills; Bob's notes; assorted correspondence; a current V5C document; and a quantity of MoTs (most recent expired March 2005. It should be noted that the frame number appears to have been re-stamped.

Footnotes

  • As with all Lots in the Sale, this Lot is sold 'as is/where is' and Bidders must satisfy themselves as to the provenance, condition, age, completeness and originality prior to bidding.
Contacts
1959 BSA 646cc A10 ISDT Replica Frame no. FA7 16419 (see text) Engine no. DA10 7543
Auction information

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Motorcycle Spares and Memorabilia Clearance
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