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O.S.ENGINE

O.S.SPEED B2105 3.5cc Buggy Engine Combo Set

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Article nr: OS1EK01
Stock availability:
0 pcs
Delivery: Out of stock
Next delivery: 2025-06-13
Retail price: 6339 kr
Product description

O.S.SPEED 1EK01 - B2105 3.5cc Buggy Racing Engine Combo Set

The top of the world again!
O.S.SPEED B2105 was born after further evolution.

O.S.SPEED's off-road racing engine has undergone further evolution. The B2105, which has evolved into the fifth generation of the B21 series, is designed to secure power to gain an advantage in harsh off-road racing scenes and pursue a driving feel in any situation. change. This allows for smooth rotation. Furthermore, the effect of a lighter outer head also overlaps, and we have succeeded in improving drivability.


The newly designed cylinder/piston uses 3 ports. The port shape has been changed and the air-fuel mixture flow has been reviewed to achieve more useful torque performance.


The newly designed crankshaft has undergone O.S.SPEED's traditional DLC processing and the internal shape has been revised to improve not only power characteristics but also rotational hold.


The outer head uses a new design. Succeeded in improving drivability in any situation by reducing weight.


The crankcase has inherited the well-established B2104.


The cover plate adopted from B2104 uses a specially treated thrust plate to reduce wear caused by interference between the rotating connecting rod and the cover plate, extending engine life.


This combo set includes a TB02 EFRA2089 pipe + MB01-75 manifold set to maximize the B2105 engine performance. It's also available without the exhaust system (OS1EK00).

Specs:
  • Displacement: 3.49cc
  • Bore: 16.27mm
  • Stroke: 16.80mm
  • Power: 2.68ps / 2.64hp @ 34.000RPM
  • RPM range: 4000-42.000
  • Weight:348g

Standard accessories:
  • Glow plug: T-P3
  • Venturi: 6mm & 6.5mm
  • Exhaust seal ring
  • Dust cap set: 3, 16 & 18mm
  • TB02 EFRA2089 pipe + MB01-75 manifold set
Features
Country of origin: JP
Parts
  • Tools (2)
  • Starting Equipment (2)
  • Engines (39)
  • Exhaust Systems (3)
  • Hardware (2)
Popular Accessories
Files/Downloads
File name Language Published
B2105-size EN 2024-09-16
B2105_Manual-EN EN 2024-09-16
GPSR

Manufacturer

Registred contact information for the products manufacturer.

Name OS Engines MFG.Co.Ltd
Address 6-15, 3-Chome Imagawa
Higashisumiyoshi-ku
546-0003 Osaka
Country Japan
Phone 0081-6-6704-2722
Email e-info@os-engines.co.jp
Homepage www.os-engines.co.jp

Importer

Registered contact information for the responsible company within the EU.

Name Minicars Hobby Distribution AB
Address Annelundsgatan 17
74940 Enköping
Country Sverige
Phone 0046-0171143000
Email info@minicars.se
Homepage https://www.minicars.se
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