Darryl and Sina in Colorado

August 15th, 2004

I bought a Golden Eagle engine for my wife’s new recumbent, after spending weeks researching various engine and electric motor systems for bikes. My research kept leading me back to the Golden Eagle because its drive system and engine just made the most sense to me. We live at 6,000 feet in the Colorado foothills, so high altitude engine performance was a big concern of mine. I was assured that the engine would not suffer at this altitude. It came down to this; there may be grades too long and steep for the Eagle alone, but with the optional mountain gear, the Eagle would be able to assist my wife over any hill that stood in her way. Around here there are plenty of hills and some of them don’t just stand, they tower.

I liked what I saw in the design of the Golden Eagle drive system, so I took a leap of faith and ordered one. It was a leap of faith because there weren’t any Golden Eagle’s in my area to look at and because ya just never know these days. I’m glad I still have faith in people, because Dennis and Julia at Golden Eagle made buying from them a pleasure. Not having done any bicycle mechanical work before made the new axle part of the job a challenge, but the mounting of the engine and everything else was a breeze. The entire system is well thought out and went together well.

I wanted a trike, so I elected to go with a recumbent trike that has an engine built into it. Although my engine is a 31cc 4 stroke engine, Sina’s 25.4 cc two stroke has better performance and is just as quite. The Golden Eagle drive system also delivers more power to the wheel then my system, so she can develop more torque and top speed then I can. In fact we have used Sina’s bike to pull family members, riding conventional bicycles, up to the top of some of the hills around here.

We got the engines to “flatten out the hills” where we live. Sina wanted to ride bikes again but didn’t want to “grunt” the hills everyday. This is our typical ride. We turn on the engines in the driveway and coast down our road at 30mph. Once we get to the bottom of the 1/4 mile road we engine/peddle the 1/4 mile over to the bottom of the next hill; a 1/2 mile upgrade, which we then engine/peddle up. At the top Sina takes off her belt while she waits for me to catch up. Now we can coast the 1/2 mile down grade. Keeping the belt on would not be a good thing to do. It would surly come off unless she rode the brakes and kept the speed down. Now why would she want to do that?? At the bottom of that hill we pedal around the lake and over to the top of the next hill. This hill is also a 1/2 mile down grade with speeds around 30 – 40 mph, depending on your comfort level. Now we pedal on into town for what ever reason took us there in the first place. This pedal is a down hill grade all the way. Once we are ready to go home we pedal back up towards home for as long as we feel like it then we fire up the engines (put the belt back on) and engine/pedal the rest of the way back home. We got the bikes to pedal them for the exercise. We got the engines so that we would want to ride the bikes for the exercise.

Some of the pictures show the road near our house. As you can see on the sign behind Sina, parts of the road are a class 5 county road. The hills to right of the lake in that picture is where we live. We are two very happy engine bikers. The other pictures show Sina’s bike in the driveway. The gold water bottle on the engine mounting frame is extra fuel. The water bottle frame is what she ties the belt to when she wants to free ride. I have since replaced the standard water bottle with a spun aluminum fuel bottle.

Sina is in good shape, but your system is the little engine that can. Although the standard placement over the rear wheel is fine, it makes this particular bike light in the front. Mostly because the front wheel is so far away from the back. I looked over your reviews again and noticed that one of the recumbent guys put the engine under the seat rather then over the rear wheel. I could see that idea as being helpful to the center of gravity situation. It’s not been a problem with the engine in the back; it’s just not balanced well that way.

Now my wife races UP and down the hills around our home. She doesn’t call them mountains anymore, now she calls them Colorado Speed Bumps. This little engine that can even ran well on a recent trip we took to the top of Rocky Mountain National Park, at 12,000 feet.

My hats off to Golden Eagle, they made it possible for a couple of middle-agers to enjoy riding bicycles in Colorado again.

Darryl & Sina
Fort Collins, Colorado

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