OS Engines - Item No. OSMG2065
5 out of 5 Customer Rating

Speed B2102 Competition .21 Engine with T2090SC Pipe

Tuned to take the track!

OS makes every competition hotter! The B2102 Competition Engine is, as its name suggests, a born competitor. It's designed with a low cylinder head for reduced center of gravity for superior stability when you blast around corners and slam down the throttle on the straights. Plus, it's equipped with a 22C slide valve carburetor for better fuel economy and a silicon potted, tungsten-weighted crankshaft with a hard, diamond-like coating. From the P3 Turbo Glow plug to the polished tuned pipe, this engine is every inch the competitor you need to take the track.
  • B2101 Engine with low profile cylinder head
  • 22C slide valve carburetor redesigned for better fuel economy
  • Tungsten weighted, silicon potted crankshaft with diamond-like coating
  • Modified, high-performance crankcase bypass
  • T2090SC Aluminum tuned pipe with polished natural finish (EFRA-2089 noise rating)
  • 6.5mm Carburetor reducer
  • Exhaust seal ring
  • 3, 16, and 18mm dust caps
  • Full instructions

Product Specs

Product Height
2.6 in (65.9 mm)
RPM Range
4,000 - 42,000
0.65 in (16.4 mm)
Crankshaft Type
Power Type
Plug Type
O.S. P3 turbo
0.65 in (16.4 mm)
0.211 cu in (3.46 cc)
Oil Type & Content
At least 18% synthetic lubricant
Product Length
2.5" (64.5mm) from back plate to front bearing
Crankshaft Threads
UNF 1/4-28
Engine (Only) Weight
12.25 oz (347 g)
Muffler Type
Tuned Muffler
Product Width
1.8" (45mm) at mounting tabs
2-stroke glow powered buggy engine