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250 SPORTS STAR SS-80

BSA Sports Star SS-80 250 c.c. High-Perforrrar.ce Single

Newest ESA Super Sports 250. Super-fmkhed, with lots of brilliant chrome — including fuli chrome fenders — super-powered, with compctition cams, high-comprcssion pis ton, and largc-boracarturctor, plus nigged niKer-bearing big-end anc heny-duty flywhccl assembly. Lots of ;ip. lots of in this livcl> sports 250!

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F.ngine: 249 c.c. (67 mm. borc, 70 mm. strekci single cyiinder four-strokc; die-cast light alloy head with pelished tins. 9 • 1 ccmpression ratio; high-duty valve springs ar.d special large diameter i nici valvc; fully enclcscd valvc gc;;r with nressure oil feed to ovcrhcad rockci trcchamsn; sports cam-shaft; ball-race on drive sidc mainshaft; ccpper-iead bear.ng on the timing side; roller bearing big-end; Steel lywheds; dry sump kfcr.cation with doublc-gcar typc oil pump; oil tank capacity 4 pints. Carburetor: Large borę Amal Monoblec typc: twist grip throttle control; fluted handlebar grips: encloscd air clcaner. Transmission: BSA 4-speed gearbox in unit ccnsiruction with the engine; positive-stop

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foot control; gear rat:os6.36—8.14—11.19 —17.04; multi-platcclutch. with bended rc-silicnt facings and incorporat.ng a synthetic rubber cush drive; j' cuplex primary chain with slipper type acjuster; rear Chain '< .355'rollcrs; primary cha n oilbt.tn and guard ovcr top run of rear chain. Ig.nition: Coi. ignitior, incorporating A.C. generator with rcctifki, for D.C. oattery light ing, automatic advar.ee and letard unit mounted cn cra.nkcase; special switch posilion for entergency starting; folding foot starter. 6^r dia. naCellc mojnted head lamp with ammeter, light ing switch; kęy-loek ignitior: switch. and built-in illaminated speećcmetcr. Stop and ta.l lamp incorporating rear refketor; electric horn; 12 amp. hr. battery hcu$ed in a spccial compartmcnt bclow dual seat.

Fuel capacity: 3 gallons.

Tircs: Dun.cp 3.25—17 Uniwersał, front an:l rear.

Brakes: Fuli width lv.ibs: 6" di&. brakes, both with finger cdjustmcnt, fron: by knurled thuinbscrew on l andlebar, s:ra ght spokes.

Suspension:    BSA hydraulically - damped

tclcscopic fron:    forks; hydraulically-

dan ped swinging arm rear suspension

Franie: Cradlc typc of brazed construciion with duplex tubes fer engine nounting. Rigidrear mudguard without stays; spr.ng-up central stand; sidc stand: BSA dual seat with chrome hand raił and pillion foctrcsts Western typc hancjcbar with contbineć front brakc and air control lever.

Ftnish: Deep lustro Mc:allic Red petro tank w th chrome panek and goldstriping. chrome platcd irudgtiards; chrome whee. rims; pol sncd primary chaincover, timing coYcr. and brake anchor piąte r tns; h.ibs and cover plaies siker sheen. covcr piąte rims and other bright paris cnromium plateti.

General dimensions:    Wheelbasc 51.}":

ground cleatance 5 ovcrall Icr.gth 78". dry weight 280 los.