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O.S. Speed B2103 Type S .21 Nitro Engine

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$599.99
$479.99
$400.00
(You save $199.99
SKU:
OS1BN00
UPC:
4531028025134
Availability:
Usually ships in 24 hours
Weight:
1.50 LBS

O.S. Speed B2103 Type S .21 Nitro Engine

$599.99
$479.99
$400.00
(You save $199.99

This is the OS Speed B2103 Type S engine. This 3-port long-stroke engine offers a high torque at mid-low range with a sweet delivery and low consumption. The crankcase, the crankcase cap and the carburetor feature a new design. The new DLC-coated crankshaft has two tungsten counterweights for smooth rotation and better balancing. The B2103 Type S comes with a low–profile cooling head to provide better drivability and also vertical fins on the top to improve heat dissipation. An O-ring between the cooling head and the combustion chamber insert reduces vibrations protect against dirt thanks to a better sealing. The new 22D carburetor guarantees high response and smooth acceleration.

 

Features:

  • The long-stroke off-road engine put a high value on torque in low-middle range with smooth operation and better fuel mileage
  • The crankcase, carburetor and cover plate, and inner head are designed new.
  • All the parts are interchangeable to those of TYPE R’s.
  • High vertical finned low-profile cooling head for improving the drivability and better heat dissipation
  • The new DLC coated crankshaft has two tungsten counter weights for smooth rotation and the best balance
  • A newly designed 3-port cylinder& piston set
  • The inner head with a silicon O-ring for reducing vibration and preventing dust
  • A newly designed 22D carburetor, which produces high response and smooth acceleration
  • Replaces Speed Spec III

 

Technical specifications:

  • displacement 3.49cc
  • bore 16.27mm
  • stroke 16.80mm
  • rpm 4000-42000 rpm
  • max output 2.64hp/34000 rpm
  • weight 347gr
  • recommended exhaust T2100SC
  • port 3-port

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Wallie builds is the top option for any racer looking to have the best available car at the track. These kits are built to be winners and give you the best opportunity for wins and podiums.

- Wallie Builds will cover shipping charges to anyone in the US.

- Once the sale leaves beachRC and arrives at Wallie Builds we will take full responsibility for the order.

- Anything with the build will be handled by Wallie Builds.

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