BSA B26

 

 

 

 

Make Model

BSA B26

Year

1937

Engine

Single, OHV, 4-sroke

Capacity

348 cc / 21.2 cub in.

Bore x Stroke

71 x 88 mm

Cooling System

Air cooled

Lubrication

Dry sump

Oil Capacity

2.3 L / 4.8 US pints

Exhaust

Single, stainless steel and chrome

Carburetor

Amal

Ignition 

6 V Magdyno

Starting

Kick start

Clutch

Multi-plate with integral cush drive

Transmission 

4-Speed manual

Final Drive

Chain

Overall Gear Ratios

1st 16.2 / 2nd 11.4 / 3rd 7.3 / 4th 5.7:1

Frame

Triangulated frame, 531 tubing

Front Suspension

Shock absorber with finger adjustment steering damper

Rear Suspension

None, spring loaded saddle

Front Brakes

7 in. drum with finger adjustment

Rear Brakes

7 in. drum with finger adjustment

Wheels

Steel, spokes

Front Tyre

3.25 x 19 in., Dunlop Universal

Rear Tyre

3.25 x 19 in., Dunlop Universal

Wheelbase

1321 mm / 52 in.

Ground Clearance

152 mm / 6 in.

Seat Height

724 mm / 28.5 in.

Colours

Green/chrome plated tank and black frame

Source

Bohams

 

When BSA's single-cylinder range was redesigned by Val Page for 1937, the engines took on many of the characteristics they would retain in the post-war era, most notably dry-sump lubrication, rear-mounted magneto and that distinctively shaped timing cover. There were four new offerings in the 350 class: the sidevalve B23 and a trio of overhead-valve models. These comprised the B24 Empire Star, the B26 Star and the B25 Competition model, the latter equipped for trials use. The B-series quartet lasted until the wholesale revision of the range for 1940, which saw all four dropped.