i had a few Goped GSR40'S(Not the TSI version) and they were pretty quick at 35-40mph but i wanted something a lil faster,so i got the smaller framed GSR25 and bolted a gsr46 engine the CY460 and right out the box,i did 49mph with just a gutted stock muffler and tuned the carb good & ran 9/64 gearing,it took awhile to get to that speed though lol but still very fast.now i built a GSR46R with an ADA Racing 13.1 compression head kit,ADA Racing +1mm stroker crank,ported the cylinder and flow ported & stuffed the crank case myself running 8/68 and i haven't done a top speed yet(still breaking in the new engine)but it has a lot of torque and gets up to speed quickly! anyhow i recommend you buy this GSR46R here cuz it's a good price and modify the engine later to make it even faster,unless u wanna build a fully customized GSR46 like i did but it will run you over $1,700 bucks but it will look like a show ped.it's up to you.

Fast delivery, fast response time and great customer service! My package initially shipped with some missing parts but UPZY team resolved with a follow up delivery within a few days. Couldn't be happier!

Love my new bike. It's exactly as advertised. Thanks again!!

My dog loves this thing. I love this thing. My wife loves this thing. Everybody we pass on the road loves seeing us use it. It is sturdy, comfortable, easy to maneuver, and has all of the bells and whistles to make you and your dog feel secure and comfy on bike rides together. All other bike trailers pale in comparison to this Dutch-designed beauty.

Purchased a bike that had an issue with the back rim. The bike was shipped from the manufacturer and not Upzy, so technically his was the manufacturer’s issue. Upzy still went ahead and called the manufacturer, who then contacted me directly and resolved the issue. They went out of their way to help.

I love my Nakto electric bike. I like to zip into our local resort town to see what’s going on. I don’t have to worry about finding and paying for a parking spot. The bike arrived on time and all I had to do is unpack it, unfold it, tighten a couple of things and go. I am the envy of my campground. My sister already bought one, and I’m sure there will be more orders. Thanks UPZY.

Using the pedal assist "NAKTO" bike is harder --than, I thought it would be! I use the pedal assist for exercise. It takes me a few more pedal rotations on my bike to be in perpetual motion. My legs work to hard on the pedal assist bike. The battery and charger work just fine after each initial test. Please understand, this is a brand new product that should be in good working order. Lawrence

Gave to wife for anniversary. She rides it every day.only problem battery doesn't last long enough gets only arround 9 miles on peddle assist.

Been taking a few rides to get acquainted. Very smooth on the road and gets even more fun as you get into the off road trails. The motor is strong and the upgraded Wren suspension a pleasure. The 21 ah battery is a definite plus. Overall, decently built and a fun toy. The Upzy team was a great help in getting the order facilitated with Biktrx.

Quality construction and easy assembly. Can't tell it is behind the bike.

Had a bunch of questions and spoke at length with the upzy team before pullin the trigger and getting the DB14. Researched a bunch of different sites before deciding to go with upzy cos they had the best prices.

This dirt bike was for my kid and he loves it! Might consider getting one myself, maybe the DB27? hehe