Traxxas 5209R TRX 2.5R Recoil Pull-Start Engine: Multi-Shaft

This is Traxxas's TRX 2.5 Engine with Pull-Start and Two Different Crankshafts.

Features:

• 60% More Power that the TRX Pro .15 engine!
• Loaded with advanced features Free Flowing Rear Exhaust
• Innovative Porting only found on the most exotic racing engines
• Unique Composite Slide Carb provides less restrictive, straight through airflow for more power and better throttle response
• Exhaust Header features an extra-tough, finned mounting base that dissipates heat and is sealed with a reliable O-ring gasket
• Molded head proctector prevents damage to the head and secures the glow plug wire
• Innovative cast cylinder head is engineered for the most heat reduction possible.
• Tubular header features smooth, rounded bends to eliminate exhaust flow restriction and turbulence
• Ultra-low restriction air filter provides superior air flow and filtration for more power and a long engine life
• Offset wrist pin further reduces piston slide loading for more even cylinder wear, and longer engine life
• Shares the same mounting dimension as the OS 12-15 CV Series recoil engines
• 2.5 Cubic Centimeter Displacement (1.5 Cubinc Inch Displacement)
• IPS (Integrated Pilot Shaft)
• 90 degree air filter (includes base for upright mounting) 
• Two Crankshafts of Different Lengths: 25mm and 15mm
• 22 chapter Engine Set-up DVD 
• Pull-Start
  

Includes:

One (1) Engine
One (1) 25mm Crankshaft End
One (1) 15mm Crankshaft End
One (1) Air Filter
One (1) Engine Set-up DVD
One (1) Owners Manual
One (1) Bottle of Air Filter Oil
One (1) Decal sheet
 
Requires:

Muffler (exhaust system) depending on vehicle
Starting equipment
Traxxas 10-20% "Top Fuel" nitro fue
 
Specifications:

Displacement: 0.15 cu in (2.49cc)
Crankshaft Thread: 5mm (.197")
On-Center Mounting Holes, Front to Rear: 11mm (.433")
On-Center Mounting Holes, Side to Side: 31.4mm (1.24")
Back of engine (recoil) to front of drive washer: 73.2mm (2.88")
Height: 97.3mm (3.83")
Exhaust Port Inner Diameter: 9.9mm (.392")
Exhaust Port Outer Diameter: 13.0mm (.512")
Crankshaft Ends: One is  25mm and the other is 15mm