This BSA at Oulton Park in 2000
Rider: Philip Pick
click on the photo.
The following is a basic list of the items used in the engine and transmission, and the chassis of the production Rocket Three owned and ridden by Philip Pick in the 2000 season. This motorcycle was substantially built in 1999, with the original plans for construction made in 1995 when a slightly damaged and previously raced Mk2 frame was obtained.
ENGINE: | |
| Crankshaft: | Lightened, 7lb less than original, tuftrided |
| Con-rods: | Steel (Carrillo) |
| Crankshaft bearings: | Standard |
| Camshafts: | Racing profile (Megacycle) |
| Cam followers: | Lightened |
| Cam wheels: | Lightened |
| Pistons: | Omega, High compression |
| Cylinder Head: | Gas flowed |
| Valves: | Special, Lightened, tuftrided, with top caps |
| Valve springs: | R&D Multi-rate |
| Valve collars: | Titanium top, as required steel bottom |
| Valve adjusters: | Mushroom, short, to suit above valves |
| Pushrods: | High Strength |
| Rockers: | Lightened |
| Carburettors | Amal, Standard(ish), with fitted "smoothbore" bellmouth |
| Oil pump: | Triple Cycles +50% capacity |
| Oil pump drive: | Lightened and tuftrided |
| Primary drive: | Lightened, but still chain, alloy shock absorber drum |
| Clutch: | Lightened, “Stage 2” |
| Gearbox: | 5-speed, close ratio by Triple Cycles conversion |
| Electrics: | Standard alternator and Boyer powerbox, with small battery |
| Ignition: | Lucas RITA |
| Exhaust System: | Standard, re-routed pipes, original 'Ray-Gun' silencers |
CHASSIS: | |
| Frame: | 'Shortened' frame, engine lifted |
| Swinging Arm: | Standard |
| Swinging Arm Bearings: | Standard |
| Rear Suspension: | 13.4" Girlings, rebuilt in the manner of race Girlings; Triple Cycles multi-rate spring |
| Front Forks: | Triumph Disc type, modified damping, lightened top yoke |
| Front Brake: | Standard Disc, Lockheed racing caliper and master cylinder |
| Rear Brake: | Standard 1970 Drum, lightened, 1971 brake plate |
| Tyres: | Front, Avon. Rear, Avon, Racing compounds. |
| Wheels: | Standard Hubs, Alloy Rims, 19" front, 18" rear |
| Wheel Bearings: | Standard |
| Headstock Bearings: | Taper Roller |
| Oil Tank: | Much modified for capacity, based on X-75 part |
| Petrol Tank: | 'Thruxton' top half, bottom made to suit |
| Seat: | Works style |
| Fairing: | Triumph 'Production' racing, made in new mould |
| Handlebars: | Clip-ons |
| Mudguards: | Standard (1971 short front, X-75 rear) |
This BSA at Oulton Park in 2000 | |
| |
| For a larger (63Kb) version please click on the photo. | |
Triple Cycles
Copyright © 2000 Philip Pick
Version 0.1 Date December 2000