B2105, den femte generasjonen av B21-serien, er designet for å gi kraften som trengs for å oppnå en fordel under de tøffeste terrengløpsforholdene og for å gi kjørefølelse i enhver situasjon, sylinderforingen og veivakselen er blitt endret for å gi motoren et gjevnere turtall. Dessuten bidrar også det lette ytre hodet til bedre kjøreegenskaper.
Spesifikasjoner| Volum | 3,49cc |
| Hk/Rpm | 2,64 / 34000 |
| Turtallsområde | 4000-42000 |
| Borring | 16,27mm |
| Slag | 16,80mm |
| Vekt | 348g |
InnholdEksospakning sett 3/16/18mm
Product details in english
O.S.SPEEDŽs off-road racing engine has further evolved. The B2105, which has evolved into the fifth generation of the B21 series, is designed to secure power that gives an advantage in harsh off-road racing scenes, and pursues a driving feel that steadily demonstrates performance in any situation. By re-designing the cylinder liner and crankshaft, we have achieved smooth and linear power delivery.
Furthermore, the effect of a lighter outer head successfully improves drivability in any situation.
Spec
Displacement? 3.49 cc / 0.213cu.in.
Bore: 16.27mm / 0.641 in.
Stroke: 16.80mm / 0.661 in.
Output :2.68 ps / 2.64 hp / 34,000 r.p.m.
practical rpm range: 4,000-42,000 r.p.m.
Engine Weight:348g / 12.28 oz.
Standard accessories
Glow plug T-P3
Reducer 6/6.5
Exhaust seal ring
Dust cap set 12-30
Mer info på Engelsk