Rev 4T
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Accedi per recensireBeta, with its long tradition of specialising in trials, now introduces the first 4-stroke engine designed, developed and dedicated entirely to trials. The all-new 250cc 4-stroke engine will power the new REV and will stand side by side with the traditional 2-stroke configuration, the tried and trusted warhorse of the Beta range.
Informazioni generali
Categoria
Trial
Cilindrata
249.6 cc (15.23 cubic inches)
Rapporto di compressione
11.5:1
Alesaggio x corsa
77.0 x 53.6 mm (3.0 x 2.1 inches)
Sistema di alimentazione
Carburettor. Mikuni
Accensione
Elettronica
Frizione
Wet multi-disc clutch
Diametro
185 mm (7.3 inches)
Diametro
150 mm (5.9 inches)
Peso a secco
75.0 kg (165.3 pounds)
Altezza sella
680 mm (26.8 inches) If adjustable, lowest setting.
Altezza totale
1160 mm (45.7 inches)
Lunghezza totale
2015 mm (79.3 inches)
Larghezza totale
825 mm (32.5 inches)
Altezza da terra
320 mm (12.6 inches)
Interasse
1319 mm (51.9 inches)
Capacita carburante
2.20 litres (0.58 US gallons)
Modifications compared to previous model
Technical Modifications 2008: New fork settings. Optimisation of the oil-flow has made the forks more sensitive in absorbing the bumps as well as more reactive on the rebound, to facilitate acrobatic manoeuvres or simple movements of the front wheel. New dedicated shockabsorber settings to suit the cycle parts and the power delivery of the 4-stroke engine. New electric fuel tap: more practical, results in better mechanical accessibility and increased reliability. New hot start knob integrated into the carburettor union: immediate and easy accessibility improves practicality in starting the engine from hot. It is also less cumbersome and less vulnerable to crash damage than the earlier lever on the handlebar. New pressure-cast casings: these provide optimised design at the bottom end of the bike, to make a better match with the stoneguard rubber and casing. New outer clutch cover with five-bolt fixing for a better seal. New position for the oil filler plug: improved access to facilitate maintenance operations. New design for the clutch cover with the addition of lateral grooves to facilitate removal of the clutch: greater practicality during maintenance. New exhaust pipe with reduced metal thickness (1 mm): greater performance under acceleration together with a substantial weight reduction (-150 grams). Euro3 homologation. New colour-scheme: a brand-new mix of black and fluorescent red.
Motore
Tipo motore
Monocilindrico, quattro tempi
Sospensioni
Sospensione anteriore
Hydraulic fork with ø38 mm shaft
Sospensione posteriore
Monoshock
Telaio
Tipologia telaio
Double wave aluminium beam
Ruote
Pneumatico anteriore
2.75-21
Pneumatico posteriore
4-18
Freni
Freno anteriore
Single disc. 4 piston caliper
Trasmissione
Cambio
5 marce
Raffreddamento
Sistema di raffreddamento
Liquido
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