I was looking for a quiet bike to ride the hills behind my house and the Sur Ron does the job. The bike is a little small, I'm 6' 1" 180 lbs. Power is fine, I've got the big sprocket, plus added 3 inches to the seat height and it's now a good trail bike. Battery life about an hour. Build quality fine, not quite Japanese quality.Rear wheel, subframe bolts and rear shock could be improved. That said, fork, electricals (all of them), brakes all good.
Now I'm ready for a Sur Ron "Hornett"...10 inches suspension, bit more power, 5 to 10 percent larger, kind of a KTM eater........
So much fun, perfect bike for me and my trails
I got my bike a little over a week ago and have ridden over 100 miles of single track. I am a novice dirt bike rider, but a very experienced mountain biker. I have so much more confidence riding the Sur Ron than any gas bike I have ever ridden. It rides like a big, plush mountain bike, with fantastic brakes and grippy tires. The "beginner" mode makes the bike really safe for someones first experience riding a motorcycle.
It is a joy to ride on trails silently. Although people aren't constantly alerted to your presence as with a gas bike, I find it really nice to be able to hear what's going on around me.
The bike is definitely best suited for smaller riders. While it can accomodate larger riders, your knees may hurt after a long ride unless you spend most of the ride standing on the pegs. I added a 3" riser ($15) on the bars to improve the ergonomics. I previously felt a little hunched over while standing. A cheap easy adjustment to make the bike fit me better.
The motor and battery have proven to meet or exceed my needs. I rarely use more than 30% capacity for my 10 mile loop of slow, tight singletrack. I rode with a smaller, lighter, more aggressive rider (120 lbs vs 185 lbs) and we used the same amount of battery. I have found the bike to have more endurance, and to be considerably more durable than me. I've dropped it a bunch of times in rocks, and aside from scraping a little paint off and tearing the grip, it has shown little to no wear. The bike has ample power for tight, steep trails. Unless I am in a rare, straight, open area, I always have extra power to spare. If you ride on pavement, you will find yourself up against the top end and pegging the throttle. On tight, technical trails, unless you are an expert rider, you'll have all power you need. The battery recharges at a rate of 30% per hour, similar to the consumption rate when I'm riding.
I strongly recommend this bike. It is an incredible value and would be a great first bike, or a great low-maintenance, silent addition to add to your bike collection, regardless of whether you are a cyclist or a motorcyclist.