.21 Nitro Engines

Displacement: 3,49cc / 0.213 cu.in.Bore: 15,94 mmStroke: 17,50 mmWeight: 350 gr.Head Diam. : 59,50 mmOperating range: 4.000 – 45.000 rpmVacuum high pression injected CrankcaseLightened Crankshaft5 Ports cilinder with antifriction HCP...

Displacement: 3,49cc / 0.213 cu.in.Bore: 15,94 mmStroke: 17,50 mmWeight: 350 gr.Head Diam. : 59,50 mmOperating range: 4.000 – 45.000 rpmVacuum high pression injected CrankcaseLightened Crankshaft DLC coated3 Ports cilinder with...

Features Newly designed cooling head; 3mm lower height for low gravity and 14g lighter. Black/blue double anodized head. Back plate with steel lining like B2104 for friction resistance New crankcase inner...

Features Newly designed cooling head; 3mm lower height for low gravity and 14g lighter. Black/blue double anodized head. Back plate with steel lining like B2104 for friction resistance New crankcase inner design for linear...

Spower Japan B7TT Factory Tuned .21 Racing Engine

This is the MTS Ceramic "Team Edition" engine from Ultimate Racing. The "Team Edition" concept uses the same Ultimate engines that are for sale, but the engines are assembled directly in our factory, completely broken-in and then thoroughly checked by...

This is the 3 port .21 Off-Road Ultimate MTS Ceramic Competition Engine. Made by the prestigious Japanese O.S. Engines brand and based on their long stroke Spec II configuration, the MTS features a DLC coated crankshaft with two balanced...

This is the 3 port .21 Off-Road Ultimate MTS Ceramic Competition Engine. Made by the prestigious Japanese O.S. Engines brand and based on their long stroke Spec II configuration, the MTS features a DLC coated crankshaft with two balanced...

This is the 3 port .21 Off-Road Ultimate MTS Ceramic Competition Engine. Made by the prestigious Japanese O.S. Engines brand and based on their long stroke Spec II configuration, the MTS features a DLC coated crankshaft with two balanced...

This is the 3 port .21 Off-Road Ultimate MTS Ceramic Competition Engine. Made by the prestigious Japanese O.S. Engines brand and based on their long stroke Spec II configuration, the MTS features a DLC coated crankshaft with two balanced...

Beach RC says... This is the high speed ceramic rear engine bearing measuring 14X25.8X6 mm by Ultimate Racing meant for Ultimate engines

This is the OS SPEED B21 ONGARO EDITION  WITH TB02 COMPLETE SET. It includes the TB02(As known as T-2090) EFRA 2089 tuned silencer and the exhaust system of the / MB01-75 (75mm) manifold. Displacement:3.49cc / 0.213 cu.in.Bore:16.27mm / 0.641...

Displacement:3.49cc / 0.213 cu.in.Bore:16.27mm / 0.641 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.Weight: 352g / 12.42 ozStandard accessoriesGlow plug T-P3Reducer 5.8, φ6...

This is the MXS Ceramic "Team Edition" engine from Ultimate Racing. The "Team Edition" concept uses the same Ultimate engines that are for sale, but the engines are assembled directly in our factory, completely broken-in and then thoroughly checked by...

This is the 3 port .21 Off-Road Ultimate MXS Ceramic Competition Engine. Like its predecessor M3X, the MXS is made by the prestigious Japanese O.S. Engines brand and it's based on their square stroke Speed B21 Ty Tessmann II edition engine but has some...