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Motorized Bicycle General Discussion All topics regarding bicycles with engines.

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  #771  
Old 06-03-2013, 04:34 AM
Wally Wally is offline
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Default Re: Motorized Bicycle Take a Tip...Leave a Tip

Quote:
Originally Posted by crassius View Post
looked a bit online - seems if a guy comes to my shop with a flat & has one of these, he'll leave with the same flat as my old compressor won't fit it : (
Strange ....... most repair kits have an adapter to fit a Presta valve for a standard MTB/Motor-car ait connetor. Unscrew the "valve stopper" on the Presta, screw on the "collar" from the repair kit and hey presto!
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  #772  
Old 06-03-2013, 10:54 AM
crassius crassius is offline
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Default Re: Motorized Bicycle Take a Tip...Leave a Tip

sounds like some euro asshat has figured out he can make more money selling adapters than he can selling tubes - probably gonna sell 'special' spandex pants with a pocket to carry the adapter in too
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  #773  
Old 06-03-2013, 11:46 AM
Wally Wally is offline
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Default Re: Motorized Bicycle Take a Tip...Leave a Tip

What are you on about? I leave a tip then get called names! I am nowhere near Europe either nor am I selling anything I just see and comprehend what the items in my punture repair kit is for. It comes with tyre levers! (Note spelling) and glue / adhesive, patches to fix the leak in the tube which is attached with the adhesive AND sand paper to roughen the area.
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  #774  
Old 06-03-2013, 02:12 PM
crassius crassius is offline
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Default Re: Motorized Bicycle Take a Tip...Leave a Tip

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Originally Posted by Wally View Post
What are you on about?
sorry that you misread it, I appreciate knowing that tip of yours, but I'm definitely against the whole idea of those valves

sounds to me like someone hoping to sell 10,000 tubes, then forcing folks with compressors to buy 10,000,000 adapters just to fit those tubes
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  #775  
Old 06-06-2013, 02:53 PM
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Kioshk Kioshk is offline
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Default Re: Motorized Bicycle Take a Tip...Leave a Tip

So, just when I think I know everything I need to, I ran into a situation yesterday where I was SURE one of my needle-bearings was going south. Well, I'd FINALLY replaced my standard spark-plug line with a high-quality automotive one...I didn't have the spark-plug's nipple, so I used the crappy brass one which came with the standard plug-cap in the interim. WELL, in the 12-hours I had between replacing the line, and actually riding the bike for a distance greater than a mile, I'd forgotten about my unfinished "upgrade", and headed out on a 20-mile journey. About 15-miles out, my engine exhibited behavior which seemed like a cross between intermittent fuel-delivery blockage, and what felt like crank-binding. It wasn't too distracting; I was able to continue cruising as it would only happen in short, infrequent bursts. Well, the the frequency seemed to be increasing, so I decided to pull over and remove the head. I checked for play in the crank and piston...NONE. Used my iPhone 4 in video-mode with the light on like a periscope...this is VERY useful for inspecting the crank-case for debris. No debris. I decided to bail on my trip and limped home at about 15MPH _CONVINCED_ one of the needle-bearings was going bad. Nearing home I then remembered that I'd neglected to get a new nipple for my NGK. I stopped in at a local ACE Hardware, bought a cheapo Champion plug, and swapped out the nipple. Bike is now running great again. I feel stupider for the experience, but won't assume the worst for longer than I have to in the future. MAKE SURE YOUR SPARK CONNECTIONS ARE SOLID!
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  #776  
Old 06-08-2013, 01:48 PM
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rustycase rustycase is offline
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Default Re: Motorized Bicycle Take a Tip...Leave a Tip

I had a look at the 29'er bicycle tires... just a quick search...

The Maxxis Icon Exc 29x2.2 doesn't look like too bad a tire for a motorized bicycle.
Yet it is $65 +

My son really has a preference for the 29'er pedal bike he recently got.
And he makes use of it a lot!
Of course, mostly street riding, but he also does a lot of dirt-trail stuff I am glad I do not watch. He is aggressive and is sure he's bullet-proof.

Never-the-less, at this time, for a motorized bicycle usually run on the street, I am almost sure there are more suitable options, at more reasonable prices in the 26" rim size.

I would NOT buy a 29'er for my own use.

Dealing with the Presta valve is no more than an inconvenience for most riders. Many current pedal bikers are set up for them.

My two cents.
:-)
rc
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  #777  
Old 06-08-2013, 02:17 PM
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maniac57 maniac57 is offline
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Default Re: Motorized Bicycle Take a Tip...Leave a Tip

I see no good reason for presta valves. Why not just use a schraeder valve?
I don't use them and I don't work on the bikes that use them.
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  #778  
Old 06-08-2013, 02:39 PM
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rustycase rustycase is offline
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Default Re: Motorized Bicycle Take a Tip...Leave a Tip

It's a euro kinda thing... :-)

Actually, the presta valve is 2mm narrower than the schader valve we are accustomed to, here in amerika.

What that gets for you, is less of an intrusion into the rim, hence a stronger rim, especially for the skinny road racing tires and such.

...So, they ARE a good thing, for the right application...

Personally, I don't feel skinny tires have any place on a motorized bicycle because we are generally moving faster and encountering pavement variations at a far greater speed than most pedalists. We need the protection of a fat tire. ...and the bit of suspension they afford.

Now if you are building a motorized bicycle for a speed record on a closed course with a great surface... well, I'd have a skinny road racing tire!
When he made his run at Bonneville, Auggie was glad he had chosen a medium width tire because of irregularities in the salt,and cracks, that he says would have swallowed a skiny tire!


:-)
rc
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  #779  
Old 06-10-2013, 12:31 PM
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Jumpa Jumpa is offline
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Default Re: Motorized Bicycle Take a Tip...Leave a Tip

hey Rusty thanks for the seeds bro should have a plethora of tobaccy in no time with this weather. Someone sent me an email i thought you might like first off look what I did to my air cleaner for an extra few M.P.H. not to mention much quicker through the start of , thats a 2'' 90 wa ss clamp . I also drilled two holes where the bolts would go even though the clamp hold it pretty well


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  #780  
Old 06-10-2013, 12:33 PM
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Jumpa Jumpa is offline
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Default Re: Motorized Bicycle Take a Tip...Leave a Tip

Getting old and Umbrellas

Best Senior Moment I've heard!
Here's a quote from a government employee who witnessed a recent interaction between an elderly woman and an antiwar protester.
There were protesters at the grocery store handing out pamphlets on the evils of America .
I politely declined to take one.
There was an elderly woman behind me and a young (20-ish) female protester offered her a pamphlet, which she politely declined.
The young protester put her hand on the old woman's shoulder as a gesture of friendship and in a very soft voice the young lady said,
"Lady, don't you care about the children of Iraq?"
The old woman looked up at her and said:
"Honey, my father died in France during World War II, I lost my husband in Korea , and a son in Vietnam ..
All three died so a ***** like you could have the right to stand here and badmouth our country.
If you touch me again, I'll stick this umbrella up your ass and open it."
~ God Bless America ~ I love getting old
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