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Old 07-24-2013, 02:11 PM
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mapbike mapbike is offline
Motorized Bicycle Elite Member
Join Date: Mar 2010
Location: Central Texas
Posts: 5,379
Default Re: Fred's (Cr Machine) motor Ordered!

Originally Posted by dumpstercrusher View Post
really? maybe i jus got a crappy one.. lol either way this one looks much better

i wouldnt know as im still a noob myself but people say with a 36 tooth
sprocket, it will generally add atleast 10mph more.
One thing I learned about the wireless speedo is not to have my CDI ignition to close to it or it will cause interference and the speedo will malfunction, I use the cheapo china made wireless speedos that can be found with a quick search on ebay, had one of them on each of my bike for several years now and not one of them have gone bad yet, I've had to replace batteries at least once but that is all I've ever had to do to them, they can be had for really cheap if you just order direct from China and dont mind waiting a couple weeks or there are US sellers that you can pay the mark up to and get them a lot quicker.
pic i included here shows one of them that is on my Huffy Karaoke bike.
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36T is the largest sprocket I have on any of my bikes, someone can correct me if I'm wrong here but I think it has been said that generally you can expect 1 MPH increase for every tooth reduction from the 44T or 41T kit sprockets, this can only be true to an extent though and will also be determined by other factors such as mods to engine, weight of rider, tires, wheel bearings, oil mix and overall run quality of the engine, mine do have higher top speeds going from 44T and 41T sprockets but the speed increase/difference between the 36T and the 41T is small on my bikes, the main difference is that my 30mph cruise rpm dropped to a comfortable level with the 36T versus lots of vibes at 30mph with the 41T, the top end speed difference is most noticed going from a 44T down to a 36T, low end pull with the 44T was great but comfortable cruise speed was just about 25mph max before vibes were just out of hand and engine was wound up pretty tight, I also have a 34T on one bike and it is really nice, tops out flat ground no wind at 42MPH {sounds like she's gonna blow} and cruises pretty nice at 32-33mph I'm 5' 10''@215lbs and all my bike pull me up the inclines I deal with around here pretty good, if I get a good head of steam before I start up a couple of them.

Hope this helps.
Attached Images
File Type: jpg wireless speedo.jpg (153.8 KB, 32 views)
I dont always ride WOT, but when I do..I do my best to keep the rubber side down..Ride safely my friends!
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