BSA B25 SPECIFICATIONS, PRICE & IMAGES

Bike Features

Make Model:

BSA B25, B25SS, B25T & B25 Fleetstar

Year:
1968 – 70

Engine:
Single, OHV,
4-sroke

Capacity:
249 cc / 15.2
cub in

Bore x Stroke:
67 x 70 mm

Cooling System:
Air cooled

Compression Ratio:
10:1
Fleetstar
only: 8.5:1

Lubrication:
Wet sump

Oil Capacity:
2.25 L / 4.8
US pints

Exhaust:
Twin,
stainless steel and chrome

Carburetor:
Amal
Concentric 928/20

Ignition :
Coil

Spark Plug:
Champion N3,
0.50 – 0.65 mm gap, 14 mm thread

Battery:
PUZ5A, 12 V,
10 Ah

Starting:
Kick start

Clutch:
Multi-plate
with integral cush drive

Transmission  :
4-Speed
constant mesh

Final Drive:
B25SS,
Fleetstar: Chain, 106 links, Reynolds 110 054
B25T:  
Chain, 107 links, Reynolds 110 054

Overall Gear Ratio:
B25 SS,
Fleetstar: 1st 18.33 / 2nd 11.35 / 3rd 8.60 / 4th 6.92:1
B25T:   
1st 19.48 / 2nd 12.06 / 3rd 9.14 / 4th 7.35:1

Maximum Power:
19 kW / 25.8
hp @7250 rpm

Frame:
Loop frame
with single down tube with double cradle for engine

Front Suspension:
Coil spring,
hydraulically damped

Rear Suspension:
Girling coil
spring, hydraulically damped

Front Brakes:
B25 Fleetstar:
8 x 1.5 in., twin leading shoe, drum
B25SS, T: 6 x
0.875 in., single leading shoe, drum

Rear Brakes:
7 x 1.125 in.,
single leading shoe

Wheels:
Steel, spokes

Front Rim :
B25SS,
Fleetstar: WM2 x 18
B25T: 
WM1 x 20

Rear Rim :
B25SS,
Fleetstar: WM2 x 18
B25T:  
WM3 x 18

Front Tyre:
B25SS,
Fleetstar: 3.25 x 18 in.
B25T: 3.00 x
20 in.

Rear Tyre:
B25SS,
Fleetstar: 3.50 x 18 in.
B25T: 4.00 x
18 in.

Dimensions:
Lenght: 
2160 mm / 85.0 in.
Width:   
737 mm  / 29.0 in.
Height:  
1105 mm / 42.5 in

Wheelbase :
1370 mm / 54
in.

Ground Clearance :
B25SS,
Fleetstar: 178 mm / 7 in.
B25T: 190 mm /
7.5 in.

Seat Height:
810 mm / 32
in.

Wet Weight:
B25SS,
Fleetstar: 131.5 kg / 290 lbs
B25T: 130.2 kg
/ 287 lbs

Fuel Capacity :
B25SS,
Fleetstar: 13.5 L / 3.5 US gal
B25T as well
as US models: 9L / 2.5 US gal

Top Speed:
135 km/h / 84
mph (approximately)