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
708755
I don't think it can be removed without destroying it. That being said, I don't see how removing it would affect the operation of the crankset.
370897
It comes with a crank handle. You can remove the handle and replace it with the motor, which is sold separately.
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.
449349
Very.... Essentially the push of a button... The quick release skewer is junk, and I'll be bitchin' about it and demanding a replacement, but the mounting and solid axle setup is solid.... Feel free to contact me with anymore questions you might have... I'm a bike mechanic with 30 years experience, and a borderline activist, so will answer questions with everyday biking in mind.... Be safe, have fun, and support cycling!!!
2231571
I put it in my old steel bike. I wasn't afraid to pry it apart a bit. In fact, I sneer at those who say folks like us can't just do that. I don't believe the frame weldments are particularly precise to begin with, so it's not a big deal in my mind. You just have to be sure to position the wheel so that the brakes and lower fork don't rub and you're good to go IMO.
977626
I completely agree with Sandalsallyearlong, I had the 5914 and with all of the flimsy plastic parts, it broke after the second use. I got the 7411 after a lot more research, and have had no problems with it. However, I don't take it up and down the stairs. I think for the extra $50 you can't go wrong with the more sturdy 7411.
64638
It's definitely worth it. Anything you would like to upgrade is personal preference like handlebars and the saddle. But it'll ride great as is.
304978
just get a new chain and you should be ok if you have a good tech. It shouldnt impact it. I have a 105 group with Ultegra cassette and dura-ace chain.
813241
Make sure that the capacity of this derailleur meets your requirements for the big cog. Other than that, new shifter (only need one since you're eliminating the front derailleur), new cassette (if you're on a 3x8 there is a chance you have a free wheel vs a free hub in which case you may need a new rear wheel. If your crank isn't serviceable (I.e. Riveted chainring vs. bolted, you will need a new crank and possibly a new bottom bracket if the chain line is changing. Usually a good idea to run a chain guide on the 1x also, even though this derailleur pulls tight and doesn't bounce much at all (maybe replace defunct chainring with guide?). Sounds like a fun project, enjoy! Make sure that the capacity of this derailleur meets your requirements for the big cog. Other than that, new shifter (only need one since you're eliminating the front derailleur), new cassette (if you're on a 3x8 there is a chance you have a free wheel vs a free hub in which case you may need a new rear wheel. If your crank isn't serviceable (I.e. Riveted chainring vs. bolted, you will need a new crank and possibly a new bottom bracket if the chain line is changing. Usually a good idea to run a chain guide on the 1x also, even though this derailleur pulls tight and doesn't bounce much at... » Read More Make sure that the capacity of this derailleur meets your requirements for the big cog. Other than that, new shifter (only need one since you're eliminating the front derailleur), new cassette (if you're on a 3x8 there is a chance you have a free wheel vs a free hub in which case you may need a new rear wheel. If your crank isn't serviceable (I.e. Riveted chainring vs. bolted, you will need a new crank and possibly a new bottom bracket if the chain line is changing. Usually a good idea to run a chain guide on the 1x also, even though this derailleur pulls tight and doesn't bounce much at all (maybe replace defunct chainring with guide?). Sounds like a fun project, enjoy! « Show Less
478930
Is the chain off the sprocket? Is it your first time riding the zike. I thought mine was jamming up, but I found out my muscles were not used to a stairstepper motion ,so it was my leg muscles that needed fixing not the zike, now I can peddle 45 minutes at a time .You have to change gears 1 gear at a time. You cannot go from 1 to 6 all at once.I once had the chain come off the sprocket. I got it back on by rolling the bike backward, it was the only way. It would not go on rolling it forward. Not happy with the gear shifter. I shift from 4 to 5 and it goes to 6. Hard to get it in 7th. I love the zike. I have 2 other bikes , a GT and a nishiki, and I only ride the Zike. Is the chain off the sprocket? Is it your first time riding the zike. I thought mine was jamming up, but I found out my muscles were not used to a stairstepper motion ,so it was my leg muscles that needed fixing not the zike, now I can peddle 45 minutes at a time .You have to change gears 1 gear at a time. You cannot go from 1 to 6 all at once.I once had the chain come off the sprocket. I got it back on by rolling the bike backward, it was the only way. It would not go on rolling it forward. Not happy with the gear shifter. I shift from 4 to 5 and it goes to 6. Hard to get it in... » Read More Is the chain off the sprocket? Is it your first time riding the zike. I thought mine was jamming up, but I found out my muscles were not used to a stairstepper motion ,so it was my leg muscles that needed fixing not the zike, now I can peddle 45 minutes at a time .You have to change gears 1 gear at a time. You cannot go from 1 to 6 all at once.I once had the chain come off the sprocket. I got it back on by rolling the bike backward, it was the only way. It would not go on rolling it forward. Not happy with the gear shifter. I shift from 4 to 5 and it goes to 6. Hard to get it in 7th. I love the zike. I have 2 other bikes , a GT and a nishiki, and I only ride the Zike. « Show Less
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.
1410075
Sorry, I didn't post my entire results. I ended up replacing the DC motor for the bike twice. The second time was a charm. I now have two good control panels. I would recommend requesting the DC motor. It is not easy to replace, and there are no instructions included with it. I spent a bit of time fiddling with it to make the resistance appropriate.
1117853
The left is friction so it will do 2 or 3 chainrings on crank - versatile. Right is 7 spds, but I've used it w/ an 8 spd, you just miss a cog at top or bottom. Fyi: 6,7 & 8 speed use same basic chain & gear spacing, so interchangeability is nice.
70780
It's a bike for an adult. The ride is comfortable, once you install a superior quality crankshaft and bottom bracket. Any basic/ entry level Shimano or SRAM parts should do fine. Don't break the bank by purchasing overly expensive components. I got some good deals and upgraded with very good SRAM components parts.
1615181
If you clamp to the seat post or top bar the cranks spin fine. Depending how its mounted you may not be able to move the handle bars but there should be enough space unless the bars extra wide. I have this and have used the park tool wall mount and there isn't much difference.
74575
You can combine this freewheel with any Crankset you want. Determining factor is the length of the chain.