Spec.---------------------------
Displacement：3.49 cc / 0.213cu.in.
Bore: 16.08mm / 0.633 in.
Stroke:17.20mm / 0.677 in.
Output 2.8 ps / 2.76 hp / 35,000 r.p.m.
Practical rpm range: 4,000-45,000 r.p.m.
Weight:340g / 11.99 oz.
Standard accessories：
Glow plug RP7 /Dust cap set/Exhaust seal ring
TR02 EFRA2165 /MR03-WC Silencer & Exhaust Manifold
O.S. SPEED Flywheel Colette

WORLD CHAMPION Davide Ongaro
2022 IFMAR 1/8th IC Buggy World Championship

Spec---------------------------
Displacement： 3.49cc / 0.213 cu.in.
Bore: 16.27mm / 0.646 in.
Stroke: 16.80mm / 0.661 in.
Output 2.68 ps / 2.64 hp / 34,000 r.p.m.
Practical RPM range: 4,000-42,000 r.p.m.
Engine Weight: 345g / 12.17oz

Combo Set(TB02 EFRA2089(T2090)+MB01-75(M2000SC)

Spec---------------------------
Displacement： 3.49cc / 0.213 cu.in.
Bore: 16.4mm / 0.646 in.
Stroke: 16.55mm / 0.652 in.
Output 2.65 ps / 2.61 hp / 34,000 r.p.m.
Practical RPM range: 4,000-42,000 r.p.m.
Engine Weight: 350g / 12.35oz

Spec:　

• 3.49 cc / 0.213cu.in.
• Bore:　 16.08mm / 0.633 in.
• Stroke:　17.20mm / 0.677 in.
• Output:　 2.65 ps / 2.61 hp / 34,000 r.p.m.
• Practical rpm range:　 4,000-42,000 r.p.m.
• Weight:　 362g / 12.77 oz.

Specs ---------------------------
Stroke volume: 3.49 cc / 0.213 cu.in.
Bore: 16.27mm / 0.641 in.
Stroke: 16.80 mm / 0.661 in.
Output: 2.68 ps / 2.64 hp / 34,000 rpm
Practical rotation speed: 4,000-42,000 rpm
Weight: 352 g / 12.42 oz.
Standard accessory
T plug T-P3 1 piece

Reducer φ6Ⅱ, φ6.5Ⅱ
Exhaust seal ring 1 piece
OS SPEED Dust cap set 12-30 ・ φ3, φ16, φ18 1 each

Spec.---------------------------
Displacement： 3.49cc / 0.213 cu.in.
Bore: 16.4mm / 0.646 in.
Stroke: 16.55mm / 0.652 in.
Output: 2.65 ps / 2.61 hp / 34,000 r.p.m.
Practical r.p.m.Range: 4,000-42,000 r.p.m.
Weight: 362g / 12.77oz

Shoki Takahata won the 1st prize of 2019 IFMAR 1/8 IC Track World Championship held in Steel City Speedway, California, USA on 02 November, and Takaaki Shimo won the 2nd.　　 Both of them used O.S. SPEED R2104. It is the first time for O.S. Engines to win the championship in this category. In commemoration of the one-two finish, we are proudly releasing O.S. SPEED R2104 WORLD CHAMPION EDITION. The picture shows a prototype.

Specification

Displacement： 3.49cc / 0.213 cu.in.
Bore: 16.08mm/0.633in.
Stroke: 17.20mm/0.677in.
Output 2.8ps/2.76hp/35,000r.p.m
Practical r.p.m.Range: 4,000-45,000 r.p.m.
Weight: 340g / 11.99oz