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O.S. Speed B21 Limited Edition Ty Tessmann II Engine

Item No. OSMG2086
Sale
Brand Logo
5 out of 5 Customer Rating

O.S. Speed B21 Limited Edition Ty Tessmann II Engine

Item No. OSMG2086
$374.99 Price reduced from $799.99 to
Fall Into Savings Sale. Price shown reflects discount. Coupon codes may not be applied.
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Product Details

Champion design, champion performance.

Ty Tessmann has delivered a power plant that's worthy of his winning pedigree with the Speed B21 Ty Tessmann II Limited Edition. Unique features include a low-profile cylinder head designed by Ty, a 5.8 mm carb reducer and laser-etched engravings of Ty’s signature on the crankshaft cylinder head and crankcase. Supplies are limited, so get yours now before they run out!
  • Special low-profile cylinder head with double-height vertical fins, designed by Ty Tessmann.
  • Crankshaft cylinder head and crankcase feature a laser-etched engraving of Ty Tessmann's signature.
  • 5.8 mm carb reducer.
  • 21J3 (B) slide valve carburetor.
  • P3 Turbo glow plug.
  • Exhaust seal ring.
  • Dust cap set.

Product Specifications

Specs

Bore 0.65 in (16.4 mm)
Carb Type O.S. 21J3 (B) slide valve w/5.8mm reducer
Crankshaft Threads UNF1/4-28
Cylinders Single
Displacement 0.211 cu in (3.49 cc)
Power Type Glow
HP 2.65 PS, 2.61 HP @ 34,000 rpm
Plug Type P3 Turbo Glow Plug
Product Height 3.32 in (84.3 mm) bottom of mounting tab to top of cylinder head
Product Length 2.5" (64.5mm) from backplate to front bearing
Product Width 1.77 in (45 mm) at mounting tabs
Recommended Fuel 10-30% nitro content, 20% recommended for break-in
RPM Range 4,000 - 42,000 rpm
Stroke 0.65 in (16.4 mm)
Total Weight 12.6 oz (356 g)