New and excited

GoldenMotor.com

allen standley

Well-Known Member
Oct 22, 2011
1,126
238
63
Bangor, Maine
Expressing my own opinion. Ive only 25 or so, service and repairs too, service to mostly builds of others. Broken Spokes on multi speed wheels seems all the time. Yes--Coaster Brake may need paying attention to. Maintenence. I suppose. I always advise against a multi speed wheel. Especially with a Big Guy owning and riding not primarily for fitness but from here to there. Shimano Coaster Brake Is the way to go. I do not dispute your experiences, I can Respect them. Thanks for your contributions to this forum.
 

crassius

Well-Known Member
Sep 30, 2012
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USA
another good resource is this forum (and others) - just search for 'broken spokes' or 'failed hub' and look thru results
 

ZipTie

Active Member
Jan 8, 2016
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Mpls Mn
The debate will never end but, CNC made hubs adapters are the way to go for all us amateurs. Very few have the know how and the time to get a rag joint aligned and realigned again and again. I have used both. I suspect, many old school pro rag joint guys have never tried or installed a CNC hub combined with a engine mounted spring chain tension er.

I wish they would give this new system a try, I am guessing they would probably never use a rag joint system again. Self aligning CNC hubs combined with a engine mounted side, skateboard wheel style spring tension-er keeps our amateur drive lines trouble free, very noise free, smooth as butter and extremely reliable from the very start. Its something anyone can do, plus they are not very expensive. This system also helps take pressure off the hub from over tight chains, another cause of bearing and hub failure and heat. Note: The spring tension keeps a gentle pressure on the chain so the bearings are not being over taxed. combined with a centered hub and one that is not wobbling to and fro, making a chain over tight and then too loose.

Having a chain seize up, derail or a hub fail is potentially dangerous also. Yes, I would probably trust your rag joint install 100 percent crassius... but not mine. I agree, yes if one doesn't pack lots of new good quality grease into a dept store bike hub, it could overheat and fail. Zero fails here with a greased up hub though.

I also always add front and rear pull brakes and never use the coaster brake, as coaster brake mashing at 20 mph can cause the cone nuts to become out of adjustment in bearing pressure, leading too premature hub failure also. Many times people on this forum say what can happen but never say what will prevent the problem or totally explain why.
 

crassius

Well-Known Member
Sep 30, 2012
4,032
158
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USA
I should note here that my area is almost nothing but hills that look like walls, and 1/2 mile or longer - it is hitting a coaster brake on the downhill that causes them to literally glow cherry red after dark.
 

ZipTie

Active Member
Jan 8, 2016
750
82
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Mpls Mn
Holy cow, that is very hot crassius, its no wonder cheap ones they fail in your neck of the woods. Not sure the temp of cherry red steel but that's not good. Again front and rear pull brakes is the answer as a supplement to any coaster brake in my Opinion no matter where one lives, flat or hilly.
 

crassius

Well-Known Member
Sep 30, 2012
4,032
158
63
USA
I don't have pics, but do have alloy coaster hubs that exploded from heat, and steel ones that expanded such that when they contracted, the spoke anchor ring came loose and now slides back and forth across whole length of hub.
 

gigawert

New Member
Oct 29, 2017
5
0
1
San Jose, California
This is kind of off-topic, but I am a new member and I posted a thread in Introductions yesterday but it still hasn't been approved. Are there any moderators on this forum?
 

crassius

Well-Known Member
Sep 30, 2012
4,032
158
63
USA
are you sure, looks like you're a member rather than guest - not sure what a 'profile post' is, but maybe that's what you posted by mistake
 

LightSeeker

New Member
Oct 1, 2017
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Wow this thread got taking over LOL but it's fine. Okay back to my build I have everything together and my maiden voyage has been taken. I tell you what this is my first motorized bicycle and in Minnesota it's pretty chilly but I did not want to come back home it's soo fun riding these things. Besides the fact that I have not installed a front brake my only problem is this damn chain tensioner. There has to be a better way I have adjusted it about 3 times only to see that it loosens somewhere. And yes I did go with a CNC hub adapter it was so much easier and it works great.
 

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ZipTie

Active Member
Jan 8, 2016
750
82
28
Mpls Mn
Line up your chain and get a spring mounted engine side chain tensioner with a skateboard wheel. It bolts to the engine using the same screws. Leave a 1" to 11/2" slack in the chain and all will be perfect. The Spring keeps the perfect tension thru all revolutions and takes a huge load off the rear hub area. Will also pedal like butter. ebay is best source right now. type in the search engine on ebay
"Advanced 2 stroke Motorized Bicycle Chain Tensioner"

This combined with your cnc nub sprocket is the ticket.
 

LightSeeker

New Member
Oct 1, 2017
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Thanks for the advice Zip Tie. But I am running a 4-stroke engine and that is made for a two stroke engine I need one that connects to the frame of the bike.
 

ZipTie

Active Member
Jan 8, 2016
750
82
28
Mpls Mn
Oops... Then do the second best thing. And get a lever style spring tensioner for the frame. However replace the spring with a good one and make or add a skateboard wheel with a shallow 1/8 " deep groove u can cut into it. Use Abec bearings in the wheel. The stock wheels are wobbly. Untrue and the bearings Hardly work in them.
 

LightSeeker

New Member
Oct 1, 2017
10
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"The Adventures of A Novice Motorbike Rider"
The day was Sunday November 26th. It was an unbelievably warm day for Minnesota the weather was 55 degrees for a high 41 for the low. I took the bike out and begin riding, it was a great time but after about an hour of something told me "it would be cool to jump a curb"(bad idea). Luckily I only bent the chain tensioner broke 1 spoke and scrape myself up a bit.
Fast forward to November 29th. Since I could not fix the chain tensioner I thought "maybe I can just take it off and run the bike without a tensioner" so I took out a few links and decided I would ride it into work (13 miles away) & since it had been warm I didn't check the weather. Well when I left 5:15 in the morning it was only 25 degrees out & about 5 miles outside of work the chain broke! not to mention I was freezing my nuts off!
A co-worker took me to get on lunch and now t
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he bikes at work and that's where it's staying until the weather breaks!
 

ZipTie

Active Member
Jan 8, 2016
750
82
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Mpls Mn
OUCH
Yep Curb Jumping with a motorized cruiser is not a good idea, lesson learned and sounds like you walked away ok. Get a proper skateboard wheel with abec bearings in it... That stock wheel is a joke..weebly wobbly wheel on the stock will only get ya so far.
IF?
you need a groove in it put the wheel in a drill by using a bolt thru it
and spin it against a rough file. Where thick gloves and safety goggles and a dust mask. I've done a few like this.

Get a good spring and pick up a 41 chain at fleet farm,its a box of 20 ft of really good quality chain and will do 2 bikes for like 10 bucks.

The weathers been dry and decent and Ive been out a bit also.
 

ZipTie

Active Member
Jan 8, 2016
750
82
28
Mpls Mn
Your build looks nice and clean. Don' t
forget to reinforce those fenders of you haven't all ready or you could have another big ouch if one breaks loose flips upside down
and turns into a makeshift snowmobile ski at the wrong moment.
I wear my light weight snowmobile bibs and coat and a neck gator for comfort.
Those guys in Arizona and the likes hopefully appreciate their all year long riding weather.