Mag Wheels

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#41
Hello friends:
I'm considering getting some mag wheels for my 2 stroke GT build. When I first built it I was planning on getting a shift kit so I got a 7 speed rear hub and derailleur. I figured I could easily slap the shift kit on when I was ready to buy it, however since then I put a reed valve on which seems to give me excellent acceleration without the gears. So now I'm considering buying some mag wheels and going with a single gear on the peddle side. I've been looking at these bikeberry ones. I don't usually buy from bikeberry but I was wondering if anyone has tried these or might have any recommendations for different ones. Anything special I should look for with these things? Also, can I easily put different size sprockets on these mag wheels? I want one that can handle up to 3 inch wide tires.

https://www.bikeberry.com/engine-ki...-duty-motorized-bike-mag-wheel-set-black.html
The bikeberry mags aren't that bad I have a bbr tank in frame bike that comes with the bikes.
The only problem I've had is that those wheels don't work well with caliper type brakes they work great with disc brakes the caliper breaks cause the wheel to flex side to side .
Other than that I really love them no spokes to adjust very simple wheel as long as you run disc brakes
 


gary55

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#42
Yep. On top of the flex they also have paint on the area that the pads run which makes them squeal bad. If you do go with V brakes on the rear you might want to mount the mag on the bike without the tire with it lifted off the ground and run it while holding some emery cloth to the braking surface to remove the paint. This may not be the case with the bikeberry rims, but the angel rollers mags need this. Oddly the red mags needed paint removed and the black ones were already surfaced.
 

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#43
Yep. On top of the flex they also have paint on the area that the pads run which makes them squeal bad. If you do go with V brakes on the rear you might want to mount the mag on the bike without the tire with it lifted off the ground and run it while holding some emery cloth to the braking surface to remove the paint. This may not be the case with the bikeberry rims, but the angel rollers mags need this. Oddly the red mags needed paint removed and the black ones were already surfaced.
So that's what that squealing noise was thought it was my neighbors whining lol
 

gary55

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#44
Update: Eric from Imperial Cycles just e-mailed me indicating that these fat tire mag wheels won't fit on my GT2-A Skyhawk frame! I'm so bummed, those would have been perfect! I could have even kept my gears on the peddle side. Oh well, it looks like the HY 22s are my only option.
If you ever wanted to use the fat imperial mags on a future build with a diff. frame they might fit the original grubee frames cause they come with both 135mm or 150mm drop outs. You could probably get away with a 2mm spread of the chain stays , and the grubee frames will fit a 3" tire.
To run the 3" tire you would need to figure a way to offset the engine for chain clearance. Probably to much trouble just for mags and fat tires along with needing a top hat for the rear sprocket.
 



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#47

Street Ryderz

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#48
Yep, I decided to just get them, I just pulled the trigger on them and I ordered a 36T sprocket with the 6 hole mount here-->https://www.ebay.com/itm/6-Hole-36T-Rear-Sprocket-For-49cc-50cc-60cc-80cc-Motorised-Bicycle-Push-Bike/263385478976?ssPageName=STRK:MEBIDX:IT&_trksid=p2057872.m2749.l2649
I will probably have to use Gary's trick on them too I bet.
Do your self a favor and get these to go with the mag's they will last a long time with no issues!https://www.ebay.com/itm/MOTORIZED-...810449?hash=item41ed948f51:g:PtoAAOSwSSNbmtz1
 

gary55

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#49
Do your self a favor and get these to go with the mag's they will last a long time with no issues!https://www.ebay.com/itm/MOTORIZED-...810449?hash=item41ed948f51:g:PtoAAOSwSSNbmtz1
This is what I get for not asking advice and rushing headlong into a fix for something I saw as a problem. I wana say thanks ol buddy ol pal, but I never asked. I'm on my last angel roller and I'm not really impressed by these frames so I'm not going to buy any more as spec. builds, but if someone asks for 1 or just wanted mags I would buy this axle kit before going thru all the bullsh*t I've been doing.
 


Street Ryderz

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#51
This is what I get for not asking advice and rushing headlong into a fix for something I saw as a problem. I wana say thanks ol buddy ol pal, but I never asked. I'm on my last angel roller and I'm not really impressed by these frames so I'm not going to buy any more as spec. builds, but if someone asks for 1 or just wanted mags I would buy this axle kit before going thru all the bullsh*t I've been doing.
I was doing the same thing brother! MZ just got these nicely done upgraded ones and as you said worth it instead of messing around fitting sleeve's.I am curious about your flex theory with mags?I use the hy 22's and carry pretty good speeds through the corners and find that the tire's shoulder and side wall will flex and woble the rear long before the rim could flex, and now have hit many a unwanted bump in the road LOL and two almost three season's later they are still true. I have Schwalbe fat franks on atm and they are at 70 p.s.i. ride and ware nicly too btw.Cheaper than the hook worm's and just a bit smaller and better fit to the mag rim at 2.35 chain clearance aswell.
 

Tyler6357

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#52

FNTPuck

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#53
Some great info in this thread. Looking hard at some of those new style MZMiami mags with the axle kit linked!
 

Street Ryderz

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#54
Just to be clear, I ordered the MZ Miami ones, not the Gasbike hy22s---->https://www.ebay.com/itm/MOTORIZED-BICYCLE-MAGWEELS-26-WITH-FREEWHEEL-22T-BLACK-COLOR/282949617027?ssPageName=STRK:MEBIDX:IT&_trksid=p2057872.m2749.l2649
Will the axles still be the same as the hy 22s and will I still need to order that axle set??
I would think that the axle kit should fit all the mags currently out there as the hub's are pretty much the same,purchase of the kit will help make the bearings last and the wheel's usable for quite some time with out issues.You can use the stock axles but will have to sleeve them yourself if you want them to last!
 


Tyler6357

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#56
I would think that the axle kit should fit all the mags currently out there as the hub's are pretty much the same,purchase of the kit will help make the bearings last and the wheel's usable for quite some time with out issues.You can use the stock axles but will have to sleeve them yourself if you want them to last!
Okay, got it, ordered it, done! Thanks!
 

Spare_Parts

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#57
The reason for the bearing failures is the axle doesn't have a shouldered stop for the inner race. This allows to much pressure to be put on the inner race, and binds the bearing causing pre mature failure. I use a piece of aluminum tubing on the axle to keep the inner race form being compressed to a lesser dimension than the outer race stops in the hub.
View media item 61482
Wait, the mags don't come with that spacer? How stupid is that LOL.
 


Street Ryderz

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#59
These mag's have served me well and I have been shocked afew times buy their strength,I've hit some good pot holes being boxed in by traffic and no where to go that I thought may have done damage but no!There is a member here whom got in an accident that wrecked the front end and unfortunatly him a bit too but he said that the mag was fine LOL.Now don't get me wrong they are still not the best quality they could be but set up right witch takes some work like all things they are suited well to our use,I had to really set up the wheels properly and had always had trouble keeping wheels intact.The first issue I had noticed was the solid straight axle and just like Gary I sleeved them and set the lock nut with zero end play but just snugged up to hold everything nice so that if washers are needed to get the spacing right between the drop out's natural position not pulled in or flexed outward,then the wheel's outer axle nut is snugged and the lock nut held secure while the outer is tightened to the drop out and it's perfect that wheel will spin freely.The next issue I had was the fasteners for disc and sprocket I used some that I thought were good,longer allen head steel ones I had here because with the spacer between rotor and sprocket I needed more length and well my engine sheared those like nothing and I thought forsure when it happend due to the sound and all that the hub was done but NO! LOL the bolts all sheared just below the face so I extracted them drilled the hub a little deeper and ran the tap through so I could use longer bolts with a shoulder that just sinks into the hub and graded this time,no issues since.I had a video on here awhile back with the wheel after doing the fastener repair and checking balance YES balance is very important when trying to get up in speed!After about 45mph if your wheels aren't balanced properly it's not very likely your going to go much faster due to the engine now trying to over come the load of that inbalance on top of it's normal load.Un balanced wheels also make your ride un safe and ride like crap if they are bad.I'll re post the video and you'll see that the bearings set right and wheel balanced make's it run as free and true as possible.
 

gary55

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#60
I don't go completely crazy on my wheels. Mags are not suited for my preferences on a bike. I like the shifters. On the purple rear I have a mid range hoop rhino lite with DT Swiss spokes and ditch witch hoop on the front with same spokes. On the gray it will be rhino lite and DT front and rear. This bike is going through some changes. I rarely go over 45, but I get to it really fast.
 


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