Velocette GTP (1930-46) vs AJS Model 14 250 / 250CSR / Scrambler (1958-66) vs KTM 1290 Super Duke R (2017) vs KTM 390 Enduro R (2025) vs Ducati Scrambler Full Throttle (2019)

Comparison technical specifications

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Make:	Velocette	AJS	KTM	KTM	Ducati
Model:	GTP	Model 14 250 / 250CSR / Scrambler	1290 Super Duke R	390 Enduro R	Scrambler Full Throttle
Years:	1930-46	1958-66	2017	2025	2019
Engine:	Two-stroke, Single cylinder	Single cylinder, 4-stroke, OHV	Four stroke, 75°V-twin cylinder, DOHC, 4 valves per cylinder	Four stroke, single cylinder, DOHC with finger followers, 4 valves	Four stroke, 90° “L” twin cylinder, SOHC, desmodromic 2 valve per cylinder
Capacity:	249 cc / 15.2 cub in	248.5 cc / 15.2 cu in	1301 cc / 79.3 cu-in	398.7 cc / 24.3 cu-in	803 cc / 49.0 cub in
Bore x Stroke:	63 x 80 mm	69.85 / 64.84 mm	108 x 71 mm	89 x 64 mm	88 x 66 mm
Compression Ratio:	6.5:1	7.8:1 Scrambler: 11.5:1	13.2:1	12.6:1	11.0:1
Cooling System:	Air cooled	Air cooled	Liquid cooling	Liquid Cooled	Air cooled
Starting:	Kick start	Kick	Electric	Electric	Electric
Transmission:	Early models: 3 Speed, hand operated Later models: 4 Speed, foot operated	4-Speed	6 Speed	6 Speed	6 Speed
Final Drive:	Chain	Chain	Chain 520 X-ring	Chain 520-X Ring	Chain, front spocket 15, rear sprocket 46
Wheelbase:	1270 mm / 50 in	1345 mm / 53 in	1482 mm / 58.3 in	1475 mm / 57.2 in	1445 mm / 56.9 in
Seat height:	686 mm / 27 in	760 mm / 30 in	835 mm / 32.9 in	890 mm / 35 in	798 mm / 31.4 in – low seat 778 mm / 30.6 in available as accessory
Front Suspension:	Webb fork with shock absorber and steering damper	Telescopic fork	WP-USD Ø 48 mm fork	43mm WP APEX 43, open cartridge, compression and rebound adjustable	Upside down Kayaba 41 mm Kayaba Fork
Rear Suspension:	None, spring loaded seat	Swingarm with dual shocks	WP-Monoshock	WP APEX - Monoshock, split piston, rebound and preload adjustable	Kayaba rear shock, pre-load adjustable.
Front Brakes:	6 in. drum, internal expanding	Drum, 6 in	2 x 320mm Floating discs, Brembo monoblock 4 piston radial fixed calipers	Single 285 mm disc, Bybre caliper	Single 330 mm disc, radial 4-piston calliper with Bosch Cornering ABS as standard equipment
Rear Brakes:	6 in. drum, internal expanding	Drum, 6 in	Single disc, Brembo 2 piston fixed calipers	Single 240 mm disc, Bybre 1 piston caliper	Single 245 mm disc, 1-piston floating calliper with Bosch Cornering ABS as standard equipment
Fuel Capacity:	6.6 L / 1.75 US gal	18 L / 4.8 US gal Scrambler: 12.5 L / 3.3 US gal	18 Litres / 4.8 US gal / 4.0 Imp galUnleaded premium fuel (95 RON)	9 L / 2.4 US gal	13.5 Litres / 3.57 US gal / 3.0 Imp gal