How strong is the chainwheel? Will it bend easily if its hit against stairs? Is it removable... can I upgrade it without having to buy new cranks?
473699
It is strong but it has a flawed design but i have put it through some beating and it never has bent on me, the bike is totally worth it , you should think about switching the crank out tho after some time
1930910
This crankset does not come with a chain guard. That would have to be purchased separately.
711409
Hi. I did but I had to make sure that the crankset fit my bike. It depends upon how much wear if any on the chain and freewheel. I had stripped the pedal threads taking old one off because a previous owner didn't use proper cleaning methods. The new crankset works great and was a good replacement. If you do you homework it should just bolt right back on. Good luck and just take you time.
400374
Anyone could steal the motor with a few tools. However, I think it is unlikely.motor is slow and bike is inexpensive. Your going to want a faster bike pretty quick. Also, motor is loud compared to HUB motor
1017315
Agreed. Very easy to change, and the locking levers are secure. Just be sure to check the screws that mount the lever assemblies to the legs. One of mine came loose while I was making an adjustment and the leg section fell out. Not a big deal, fixed with the turn of the screwdriver.
1970026
if you know a little about bikes you can just switch the back wheel, you must know how to tighten the chain though, witch is the real challange, i would just take it to a bike shop, they shoulnt charge you more than 15 dollars
875230
holy smokes! what are you carrying a car battery? If the bike is balanced well, it should hold the weight but i don't know how stable it would be. I have put bikes that i think weigh 35 pounds on it. The cradle for the bottom bracket is basically hard plastic. if you're just doing routine maintenance on the bike it should be ok but probably not serious wrenching. i like my park tools 10 or 9 (can't remember). i had a tandem on the Park and it was a little iffy. Probably close to 70lbs but longer than a normal bike. Personally i think i wasted my money on the RAD.
1322804
Wonderful! The only issue is the front bar coming up from crank shaft. You will need to add a longer ubolt. The chain will need to be replaced with a heavier moptorcycle chain (cheap metal). Ive bought two engine kits and both chains have snapped withing two hours of ridding at top speed.
1031436
how much it weighs?? not real sure but for a big bike it's not bad. I have carried it up steps a number of times. Good bike.
1287150
yes its easy to assemble ,they also provide a step by step video on a dvd. its 125cc.my weight is 190lbs and it did not pull me around very well and it had a top speed of 37 mph .i put a larger sprocket on it . it now climbs any hill i can find with a top speed of 25 mph.
1141652
The bike is great, but from my experience the wheels need an upgrade. I'm currently considering what to replace them with. I weigh around 230. I've had to replace 3 spokes in the rear wheel, and I'm having to constantly true that wheel. I ride the bike to work and, given that it's a cyclo-cross bike I ride a short off-rode section. Perhaps on smoother roads the stock wheels will behave better. If you are not handy as a bike mechanic you may need to visit the shop frequently, unless you upgrade the wheels. I still think it's pretty good value for the money.
2012506
It is just my husband and I using it at home, so I was not sure I could justify the extra money. We are both extremely happy with this bike, although it does seem that the chain slaps a bit, but that may be an adjustment we can make somewhere. Since I cannot compare it to a bike with the Carbon Blue Belt Drive system because I don't have access to one, I believe the chain drive to be a completely acceptable choice.
59866
I replaced the original crankset that comes with this bike (which is actually pretty bad) with a shimano tourney crankset (Shimano FC-A070 Crankset 50/34 x 170mm 7 spd Tourney Black Road Bike). The only special tool that you will need is a crank puller for square taper cranks. You can find a lot of different models in amazon. Any of them can do this job pretty well. Finally, you may need other ordinary tools such as an adjustable spanner and a socket set. And just make sure that the socket walls are not so thick (such as those used for heavy duty jobs), so that you can insert the socket to remove the protection bolt from the crankset (you can see the bolt by removing the plastic cap that covers the crank).
70859
I personally own this bike, and weigh over 300lbs. I did have a problem with it right after I bought it though. The first time riding it I was going up a small hill and the chain popped. I don't mean just came off the sprocket, I mean sheared in half. I simply brought it to a bike shop and had then put on a better quality chain. I haven't had a problem with it yet. I use it on the street, and even take it off road sometimes.
1911942
Having had to open up the new unit to fix one of the two main bearings on the pedal assembly (should be enough to convince anyone not to buy it) I can see that the bearings are held in with a plastic bracket so I wouldn't suggest putting too much weight on the pedals. If you break one of those brackets then this thing will end up as garbage.
940968
This thing has plenty of torque and speed for such an application. You will need to rig up a chain drive. Of course, you can probably try and take off the sprocket with a heat gun. I have never tried this though.
1515134
The chain comes installed. You'll have to install the front wheel and the seat. Both are quick release, no tools. You'll also attach the handle bars and front brake, both with allen wrenches. Then pedals with a small profile wrench. Please note you should install new rim tape. I had flats right away, tube popped through a spoke hole. I would recommend upgrading the tubes and tires also, made a big difference.