1957 Norbsa

Here is a superb Norton/BSA outfit.  It is based on the following:

Norton slimline featherbed frame
Genuine Converta engine plates
Short roadholder forks
Alloy manx short circuit tank
Monza filler cap
Alloy central oil tank with another monza filler cap
AP Lockheed race caliper at the front
Braided brake hose
New Acront rims front and back
Custom made Box section swingarm will take 130 rear section tyre
New Hagon rear shocks
Quick action throttle ( tommaselli)
Alloy Manx front mudguard
BSA A10 engine built by SRM engineering to RGS spec
Alloy cylinder head, professionally flowed and ported
Lightened and balanced crank
Timing side needle roller conversion
Polished con rods
Spitfire cam
Lightened rocker gear
Engine just re-bored with New 10.5:1 compression ratio Pistons (thick flange barrels)
New race valve springs, RGS valves
RRT gearbox
BT-H race magneto
The carb is a single Amal concentric
The exhaust is 2-1 RGS headers with goldstar silencer (not shown) and sounds great

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