O.S. SPEED B21 Adam Drake 4 Combo Off-Road inkl. 2090 Reso + Krümmer

O.S. SPEED B21 Adam Drake 4 Combo Off-Road inkl. 2090 Reso + Krümmer

Artikelnummer: Art:6012
GTIN: 4531028027763
Kategorie: Verbrennungsmotoren
Hersteller: OS

449,90 €

inkl. 19% USt. ,

Unverbindliche Preisempfehlung des Herstellers: 463,14 €

(Sie sparen 2.86%, also 13,24 €)

Knapper Lagerbestand
Lieferzeit: 1 - 3 Werktage (DE - Ausland abweichend)

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Beschreibung

O.S. SPEED B21 Adam Drake 4 Combo Off-Road inkl. 2090 Reso + Krümmer

O.S.SPEED B21 ADAM DRAKE 4 - 3.5cc Off-Road Buggy Racing Engine - With T2090 Exhaust

O.S. Engines would like to introduce new O.S.SPEED B21 ADAM DRAKE 4. The latest collaboration engine with world famous O.S. Team driver Adam Drake.

The cylinder liner, crankshaft & cooling head has been redesigned to Adam Drake’s spec for better balance, more torque and more power for better driving performance.

Main changes (compared to AD3):

Cylinder liner: Revised port-design for more torque.
Crankshaft: Inner diameter has changed for better low to mid end power.
Combustion chamber: Redesigned for more torque
Outer head: Extra fin for better cooling, reduced weight, lower center gravity for better balance and new laser design with double anodized colors.

First deliveries are expected in December 2025.

Specs:

Displacement: 3.49cc
Bore: 16.4mm
Stroke: 16.55mm
Output: 2.65ps / 2.61hp @ 34.000RPM
Practical RPM range: 4.000-42.000
Engine Weight: 352g

Included:

T2090 Exhaust Set: TB02 EFRA2089 Pipe & MB01-75 manifolder
Glowplug: O.S.SPEED P3
Reducers: 6II (blue) AL2 & 8mm (blue) AL
Exhaust seal ring
Dust cap set: 3/16/18mm

Advice and testing was done by Roar Champion Adam Drake.

Newly designed cylinder liner uses 3 port design. Changing the exhaust dimension for more torque.

Changed crankshaft’s inner diameter for better response in low to middle range.

New outer head has double anodized black and blue with new laser design and at same time lighter and better balance compared to the previous model.

The combustion chamber has been redesigned combustion efficiency has been improved, resulting in more torque.

Comes with φ6II and φ8 blue anodized restrictor venturis.