O.S. Speed B21 Ty Tessmann II Limited Edition

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Price: $374.99
Discontinued Online
This item is discontinued and no longer available for purchase. You may want to search our site for a similar item.
The O.S. Speed B21 Ty Tessmann II Limited Edition engine is a power plant worthy of Ty's winning pedigree. 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. So whether you are a fan of Ty, or just a fan of O.S., this engine is available for a limited time only, so get one before they are gone!

Features:
  • 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
Specifications:
Bore:
0.65 in (16.4 mm)    
Crankshaft Threads: UNF 1/4-28    
Cylinders: Single    
Displacement: 0.211 cu in (3.49 cc)    
HP: 2.61 hp @ 34,000 rpm    
Height: 3.32 in (84.3 mm)    
Length: 3.70 in (94 mm)    
Plug Type: P3 Turbo Glow Plug    
RPM Range: 4,000 - 42,000 rpm    
Recommended Fuel: 10-30% nitro content    
Stroke: 0.65 in (16.4 mm)    
Total Weight: 12.6 oz (356 g)    
Width: 1.77 in (45 mm)

This product was added to our catalog on September 26, 2018

Richmond LLanto
Verified Owner
Thursday, Jun 11 2020 (about 3 years ago)
O.S. Speed B21 Ty Tessmann II Limited Edition
Got this engine. It’s perfect for buggy! Very smooth powerband.
Mugatu
Sunday, Jul 21 2019 (about 4 years ago)
O.S. Speed B21 Ty Tessmann II Limited Edition
The best, most linear buggy engine on the market. Not the most insanely powerful but by far the most controllable. More linear than the Drake engine. So smooth and controllable.
Dennis Davidge
Verified Owner
Tuesday, Oct 13 2020 (about 3 years ago)
O.S. Speed B21 Ty Tessmann II Limited Edition
This engine has an amazing power curve to it. Very linear and very easy to drive while still have a ton of top end. It always just runs good and is very easy to tune.
William Whitlow
Verified Owner
Wednesday, Aug 19 2020 (about 3 years ago)
O.S. Speed B21 Ty Tessmann II Limited Edition
I am very impressed with this engine it has tons of power but very smooth at the same time the first time I ran it was at wicked weekend in qualifying and it performed flawlessly but that’s what you get when you buy a O.S. engine and do proper breaking in.