Golden Eagle Bike Engines, for Mountain bikes and street...
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25.4cc Red Max "Strato Charged" 2 stroke  |  25cc Robin/Subaru Mini-4 stroke  |  35cc Robin/Subaru Mini-4 stroke

26cc Tanaka PureFire 2-Stroke |  32cc Tanaka PureFire 2-Stroke  |  40cc Tanaka PureFire 2-Stroke




25.4cc Komatsu Zenoah/RedMax 2-Stroke
Complete Engine Kit $549.00 plus $20.00 s & h = $569.00


Discontinued - updated engine lost performance, no longer meets our standards.


This torque hi-tech Strato Charged, Carb Tier II engine remains our most fuel efficient, smoothest, lightest weight model. You feel like you're part of the machine, helping it to achieve More! The rest of the time - sit back and enjoy It assist You - Carrying you on The most Fun Ride you've experienced on a Bicycle. This 2-stroke's energy is infectious!

Top speeds of 30+ MPH - Range of 35-40 miles per tank - Up to 250 MPG.
Tests conducted under 'real world' conditions - with a 210 lb rider - steel frame 26" bike (add another 50 lbs for bike, engine and mount) using the Standard gear on moderately hilly pavement.
Mileage will vary with terrain, riding style, tire tread and weight load (as with autos).

Clutch offers little resistance, very easy to pedal with or without the engine.
If you wish to pedal for any real distance without the engine, remove belt from track of drive ring for zero drag.
  • To remove belt from track of drive ring - Flip tension lever arm to off position, roll bike as you lift belt from track of drive ring and secure belt out of the way of any moving parts. It's just as easy to re-install the belt when engine use is again desired.

GEBE offers three, easy to change drive gears, a screwdriver, 3/8" wrench (or our new 4-N-1 Ring/Spoke/Gear Key) and a few minutes are all that is needed to change gears. The tension arm automatically adjusts for proper belt tension with all three gears, no additional adjustment is necessary. The Standard gear (included with kit) allows speeds up to 30(+)mph, is great for most terrain - street, highway and moderate hills/trails.
** The Trail gear (sold separately) has more low-end torque - is better for off-road, more hilly areas or pulling a heavier load.
** The Highway gear (sold separately) has less low-end torque - is better for more level ground for a faster commute and higher mileage
  • There is a 10% difference in top speed between the Trail, Standard, and Highway gears.

This engine does not require a 'breaking-in' period - Never mix the fuel rich! The 50:1 gas/oil mix is Always the recommended mixture. Fuel burns clean, there is no smoke or oil spewing from the exhaust as with the old style 25:1 two-stroke engines.

Strato-charged two barrel injection with hemi-head, floating roller cages - both ends of crank and rod, chrome bore and two ring piston makes for the most smooth, long life, powerful, fuel efficient bicycle engine available. The 2 barrel injection system automatically adjusts itself for operation - from below sea level to extremely high altitudes. The heavy duty 54mm centrifugal clutch allows for smooth, free wheeling operation.

**CLICK for Maintenance Manual
**CLICK for (GEBE One Year Mount Warranty)


Engine Specs GZ25N-KZ/R 25.4cc Komatsu Zenoah/RedMax 2-Stroke
TYPE
Air-cooled,2-cycle, Single cylinder, piston valve gasoline engine
Cylinder Bore & Stroke
34mm x 28mm (1.339in. x 1.102in.)
PISTON DISPLACEMENT
25.4cc (1.6cu in.)
Effective Compression Ratio
8.0
Operating speed
6000 - 10000 rpm
Idling Speed
3000 +200 rpm
Clutch engagement speed
4000 +200 rpm
OUTPUT - Max.
1.2HP (0.9kW) / 7500rpm
Max. Torque
0.12kg.m (10.4in.lbs) / 6500 rpm
Direction of Rotation
Counterclockwise As Viewed From P.T.O Shaft Side
Cooling System
Forced Air Cooling
Carburetor
Model - Walbro WYA-1B - Diaphragm Type
Fuel
Mixture of 87 octane or above unleaded gasoline and RedMax (or Quality) 50:1 2-cycle engine oil
Fuel Feed System
Diaphragm Pump
Fuel Tank Capacity
0.65 liters (22 fl.oz.)
Ignition System
CDI with automatic timing advance system
Spark Plug
NGK CMR7A
Starting System
Recoil Starter
Air Cleaner
Dry Type
Engine Dimensions (L x W x H) mm
271mm x 223mm x 248mm
Engine Dimensions (L x W x H) in
10.67in x 8.78in x 9.76in
Dry Weight (engine only)
3.1kg (6.8lbs)
Dry weight - Total - Including Mount Kit
11lbs 12 oz


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