VS Racing 2101B Competition Off-Road Buggy Engine

VS Racing
This item is discontinued and no longer available for purchase. You may want to search our site for a similar item.
Low Price: $399.99
Discontinued Online

The VS Racing 2101B Competition Off-Road Buggy Engine is a super long stroke .21 off-road engine is based on the powerful O.S. Speed 21XZ-B Spec II. By combining the experience, precision and technology of world famous OS Max engines, with additional tweaks and changes from the mind of legendary Rody Roem, the 2101B delivers a balance between high performance, reliability and cost.

The biggest changes can be found in the crankshaft and the combustion chamber. The 14mm turbo crankshaft and turbo head button have been "Rody Modified". This includes balancing, porting, lightening and silicone ramping the crankshaft intake. The VS Racing 2101B is best suited for high competition 1/8 scale off-road racing and is recommended for "EXPERIENCED" users.


  • Long Stroke
  • Specific 3 Ports design
  • CNC machined flat piston
  • 14mm turbo crankshaft - 'Rody Modified', balanced, ported, lightened and silicone ramped
  • Competition Conrod
  • VS Spec turbo combustion chamber
  • 14mm high-speed main bearing
  • 7mm high-speed front bearing with rubber protection
  • VS Spec. lightweight cooling head
  • VS crankcase
  • VS spec. aluminum lightweight slide carburetor with double adjustment
  • 6.5mm aluminum venturi

Contents: .21 (3.49cc)
Bore: 16.27mm
Stroke: 16.80mm
Crankshaft: 14mm SG/SPT (buggy)
Main-Bearing: 14mm High Speed
Front-Bearing: 7mm High Speed
Cylinder: ABC
Ports Intake: 3
Exhaust Port: 1
Carburetor: Neck 15mm VS Spec.
Cooling-Head: Light Off-Road
Head Button: VS Spec for conical(Turbo) glow plug
RPM: Max Power @ 30K RPM (4-40K RPM range)
Weight: 355Gr

This product was added to our catalog on December 29, 2016

Andrew Darby
Thursday, Aug 30 2018 (3 months ago)
VS Racing 2101B Competition Off-Road Buggy Engine
This Engine is the best engine I have ran in a decade, you can tune and run the engine with a variety of pipes for more bottom, mid to high, mileage, or just raw crazy power. Rody Roem is an amazing person who can be reached if you have questions and the staff at A Main can too. This Engine is a Speed XZB Spec II with similar tuning, Steel Swiss bearings that are higher quality than the OS stock bearings, and the VS Racing crank is specially tuned via Rody that makes this engine so special. Every other Speed II copy is 99% the same almost, the VS is an improvement over the Speed II. I own 4 of these engines, this sale price plus the coupon offer I couldn't pass it up. You can run the 2090 Pipe for all out power ok-decent run time, I would recommend the 2035, smooths out the massive amount of power made by the engine and you gain mileage, I can pit 8-9min w/o problems. Other pipes that work 2050, 2060, 2146, Nova 9886.