O.S.ENGINE

O.S. SPEED T1204 On-Road*

Article nr: OS1CS00
Product description

O.S.SPEED T1204 2.1cc Racing Engine

This is the successor of T1203 which is the World Champion engine in 2018. T1204 has more toque in low-middle range with better performance. Two tungsten weights are embedded in the counterweight of newly designed crankshaft, which helps powerful performance in middle range. The cooling head with wider fin pitch improves cooling efficiency.

Specifications:
  • Displacement: 2.1cc
  • Bore: 13.67mm
  • Stroke: 14.30mm
  • Output: 1.73hp @ 35.000RPM
  • Practical RPM Range: 5.000〜45.000
  • Weight: 233g
  • Standard accessories: Glow plug RP6 /Dust cap set/Exhaust seal ring
Features
: 2024-12-18
Country of origin: JP
Parts
  • Tools (2)
    Multi Glowplug Tool - Nuts: 8/5.5mm & Hex: 2.5/5mm
    Multi Glowplug Tool - Nuts: 8/5.5mm & Hex: 2.5/5mm
    50+ st
    Retail Price: €16.44
    Speed Plug Wrench O.S.SPEED
    Speed Plug Wrench O.S.SPEED
    8 st
    Retail Price: €28.65
  • Starting Equipment (2)
    Glow Starter with Meter for Sub-C battery
    Glow Starter with Meter for Sub-C battery
    26 st
    Retail Price: €32.75
    O.S. Glow Plug Turbo RP6
    O.S. Glow Plug Turbo RP6
    50+ st
    Retail Price: €15.18
  • Exhaust Systems (4)
    Exhaust Seal Ring Max-12TG
    Exhaust Seal Ring Max-12TG
    2 st
    Retail Price: €11.42
    Tuned Silencer Complete Set T-1070SC L-52 (EFRA2672) 1:10 On
    Tuned Silencer Complete Set T-1070SC L-52 (EFRA2672) 1:10 On
    2 st
    Retail Price: €159.89
    Tuned Silencer T-1070SC L-52 (EFRA2672) 1:10 On-Road
    Tuned Silencer T-1070SC L-52 (EFRA2672) 1:10 On-Road
    2 st
    Retail Price: €125.63
    Exhaust Manifold Assembly MT01 (M1006SC) 1:10 On-Road
    Exhaust Manifold Assembly MT01 (M1006SC) 1:10 On-Road
    2 st
    Retail Price: €52.53
  • Engines (36)
    Carburettor Retainer Speed 12TZ Spec-2
    Carburettor Retainer Speed 12TZ Spec-2
    2 st
    Retail Price: €11.42
    Needle 12F, 11H, 11K, 12D
    Needle 12F, 11H, 11K, 12D
    4 st
    Retail Price: €11.42
    Ball Bearing Front 12-size
    Ball Bearing Front 12-size
    0 st
    Retail Price: €16.03
    Piston Pin Speed 12XZ
    Piston Pin Speed 12XZ
    50+ st
    Retail Price: €10.42
    Metering Needle 12F2-B (12XZ Spec-3)
    Metering Needle 12F2-B (12XZ Spec-3)
    4 st
    Retail Price: €13.82
    Mixture Control 12F2
    Mixture Control 12F2
    4 st
    Retail Price: €12.62
    Needle Holder 12F-B (12XZ)
    Needle Holder 12F-B (12XZ)
    2 st
    Retail Price: €13.82
    Dust Cover 3/16/16mm 12F-B (12XZ)
    Dust Cover 3/16/16mm 12F-B (12XZ)
    5 st
    Retail Price: €7.01
    O-Ring (S-16)
    O-Ring (S-16)
    12 st
    Retail Price: €5.81
    Ball Bearing Ceramic Speed 12TZ Spec-2
    Ball Bearing Ceramic Speed 12TZ Spec-2
    14 st
    Retail Price: €66.32
    Dust Cover 11K, 11H, 12D
    Dust Cover 11K, 11H, 12D
    2 st
    Retail Price: €9.22
    Throttle Stop Screw 11K, 11H, 12D
    Throttle Stop Screw 11K, 11H, 12D
    3 st
    Retail Price: €8.01
    Thermo Insulator 11H, 11K, 11L (12-18TZ/TM)
    Thermo Insulator 11H, 11K, 11L (12-18TZ/TM)
    4 st
    Retail Price: €13.82
    Carburettor Gasket 2A/S, 3A, 20C/D/M
    Carburettor Gasket 2A/S, 3A, 20C/D/M
    20 st
    Retail Price: €5.81
    Oring (S) 10D, 10F, 1H-3H, 20E, 40B, 40J
    Oring (S) 10D, 10F, 1H-3H, 20E, 40B, 40J
    31 st
    Retail Price: €5.81
    Ball Link No.5
    Ball Link No.5
    3 st
    Retail Price: €12.62
    O-Ring Carb Retainer 2 (7B, 20G)
    O-Ring Carb Retainer 2 (7B, 20G)
    15 st
    Retail Price: €5.81
    Set Screw M3x3mm
    Set Screw M3x3mm
    2 st
    Retail Price: €5.81
    O-Ring (S-3)
    O-Ring (S-3)
    13 st
    Retail Price: €5.81
    Head Gasket (0.1/0.5) T1201
    Head Gasket (0.1/0.5) T1201
    8 st
    Retail Price: €7.01
    Connecting Rod SPEED T1201
    Connecting Rod SPEED T1201
    14 st
    Retail Price: €38.87
    Carburettor Slide Valve 12F3
    Carburettor Slide Valve 12F3
    1 st
    Retail Price: €28.65
    Needle Valve assembly 12F2-B
    Needle Valve assembly 12F2-B
    4 st
    Retail Price: €21.84
    Piston Pin Retainer SPEED (6) 21XR-B Ver.3
    Piston Pin Retainer SPEED (6) 21XR-B Ver.3
    50+ st
    Retail Price: €9.22
    Universal Nipple No.21
    Universal Nipple No.21
    4 st
    Retail Price: €9.22
    Piston & Sleeve SPEED T1203
    Piston & Sleeve SPEED T1203
    2 st
    Retail Price: €114.21
    Cover Plate SPEED T1203
    Cover Plate SPEED T1203
    0 st
    Next delivery: 2025-10-24
    Retail Price: €15.03
    Carburettor Complete 12F5(B)
    Carburettor Complete 12F5(B)
    1 st
    Retail Price: €114.21
    Carburettor Body 12F5(B)
    Carburettor Body 12F5(B)
    1 st
    Retail Price: €49.29
    Crankcase SPEED T1204
    Crankcase SPEED T1204
    8 st
    Retail Price: €79.94
    Crankshaft SPEED T1204
    Crankshaft SPEED T1204
    2 st
    Retail Price: €125.63
    Piston & Liner + ConRod SPEED T1204
    Piston & Liner + ConRod SPEED T1204
    6 st
    Retail Price: €159.89
    Cooling Head SPEED T1204
    Cooling Head SPEED T1204
    2 st
    Retail Price: €89.16
    Combustion Chamber including O-ring SPEED T1204
    Combustion Chamber including O-ring SPEED T1204
    3 st
    Retail Price: €33.26
    O-Ring SPEED T1204
    O-Ring SPEED T1204
    9 st
    Retail Price: €10.14
    Carburettor Reducer 5.5mm (Red) O.S.SPEED 12 Alu
    Carburettor Reducer 5.5mm (Red) O.S.SPEED 12 Alu
    3 st
    Retail Price: €15.03
  • Hardware (3)
    Hex Screw M2.6x7mm (10)
    Hex Screw M2.6x7mm (10)
    4 st
    Retail Price: €9.83
    Hex Screw M2.6x15mm (10)
    Hex Screw M2.6x15mm (10)
    3 st
    Retail Price: €9.83
    Hex Screw M3x15mm (10)
    Hex Screw M3x15mm (10)
    11 st
    Retail Price: €9.83
Popular Accessories
Files/Downloads
File name Language Published
OS1CS00_SPEED_T1204_Parts EN 2020-12-16
OSSPEED_T1204_Manual EN 2020-12-16
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 http://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
Fits

See more products

Discontinued
O.S. SPEED T1204 On-Road/ T-1070 SC Combo*
O.S. SPEED T1204 On-Road/ T-1070 SC Combo*
0 st
Retail Price: €500.1
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