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View Full Version : Can't find the right size front sprocket?


ExtremeModz
06-16-2008, 09:38 PM
I may have your solution. I recently bought a new Kenda TrackMaster II knobby for the back. It's an amazing tire but the knobbies are so tall that it changes my gear ratio substantially. I called Bruce up from EJ cycles as seen in the parts thread. I had a 17T and was looking for a 15T FS. He told me that he could not get me a 15 only 14, 16 or 17. He told me as far as he knew they did not exist. I figured it out and a 15 would be optimal and he agreed. Then I looked on eBay and found a ZG in 15T. Bruce said even though it was the same size shaft it would not work. Well I wanted to find out for myself and I did. Turns out the notches are slightly smaller cut but you can get them in any tooth you can imagine for about $11 bucks sent. Well I realized that the size difference was slight and got out my dremel again :lol: I took a small grinding bit and ran it on the edges of each notch making them wider. I made sure to do one at a time evenly and when I was done I was amazed it fit on there perfect, like a glove! Took me about 5 minutes as I was being careful.

Now you can buy any size front sprocket you could ever need, as long as you have a dremel that is. This should help a buncha people. CHOW!

After cutting it..

http://img147.imageshack.us/img147/9601/cr2ac4.jpg (http://imageshack.us)
http://img147.imageshack.us/img147/9601/cr2ac4.eebe6d3730.jpg (http://g.imageshack.us/g.php?h=147&i=cr2ac4.jpg)

Fits like a glove!

http://img147.imageshack.us/img147/9656/cr1yv1.jpg (http://imageshack.us)
http://img147.imageshack.us/img147/9656/cr1yv1.639ac731f8.jpg (http://g.imageshack.us/g.php?h=147&i=cr1yv1.jpg)

katoranger
06-16-2008, 09:56 PM
I bought a 15T from Bruce last fall.

Allen

ExtremeModz
06-16-2008, 09:59 PM
I bought a 15T from Bruce last fall.

Allen

He may of been able to get them back then? I know he said now he can't. I wondered where you got your 15 because I saw you had one in a post you made I was going to ask but now I know.

katoranger
06-16-2008, 10:00 PM
Maybe. I haven't used it yet.

What else have you done to your bike?

Allen

ExtremeModz
06-16-2008, 10:42 PM
What else have you done to your bike?

Allen

You want the short list? Lifan GY 5

Perreli Scorpion front tires
Kenda Trackmaster II rear
Digital Engine Temp Guage
Oil Cooler, (tapped into engine)
118 Main Jet
K&N style Filter
Front shock spacers, thicker oil (stiffer for jumping)
GY7 weld in bottom frame section
Orion wavy style brake rotors
Performance Spark Coil
Custom battery box (Still located on the side)
Aluminum rear sprocket
Full aluminum racing exhaust from a 250 Orion bike
Komoto 20 hp 250cc engine
2003 KX 400cc stock Rear shock, (direct swing arm mount)
Stage 2 Cam
Performance CDI
Halogen 65 watt headlight
Flat black paint in back to eliminate reflection
Bored out carb
Bored out intake piece
Ported engine intake and exhaust to match
Performance clutch springs
Performance clutch pack
Aftermarket grips (thicker and stickier)
Bike is raised 3 inches front and back.
Longer kickstand to make up for the height difference
GPS direction system + speedometer.
Gold O ring chain
Cloth mini trunk bag
Fuel reserve tube modified for 15 mile reserve distance
Braided brake lines front and rear
Clear fuel line with filter
Shaved clutch and brake levers

A few other interesting mods are coming soon :wink:

kczukiman
06-16-2008, 10:47 PM
Wow do you have any pics?

duck
06-18-2008, 02:52 PM
Can't find a ZG brand sprocket anywhere, might you know what application it was sold for?? I see a 15 tooth 420 chain 'pitbike' sprocket that sure looks like yours, but looks...well...not so good when talking mechanical fitment :).

duck

ExtremeModz
06-18-2008, 04:09 PM
Can't find a ZG brand sprocket anywhere, might you know what application it was sold for?? I see a 15 tooth 420 chain 'pitbike' sprocket that sure looks like yours, but looks...well...not so good when talking mechanical fitment :).

duck

Sure, these are the links for the typical 13,14,15,16,17. I ordered mine and it came to my house the next day.


13T

http://cgi.ebay.com/ebaymotors/428-13-TOOTH-FRONT-ENGINE-SPROCKET-ATV-50-70-90-110CC_W0QQitemZ370059939
821QQcmdZViewItem?hash=item370059939821&

14T
http://cgi.ebay.com/ebaymotors/428-14-TOOTH-FRONT-ENGINE-SPROCKET-P
IT-BIKE-XR50-CRF50_W0QQitemZ360060919764QQcmdZViewItem?hash=ite m360060919764&

15 T
http://cgi.ebay.com/ebaymotors/_ATV-Parts-Accessories__428-15-TOOTH-FRONT-ENGINE-SPROCKET-ATV-50-70-90-110CC_W0QQitemZ1602516194
24QQadnZATVQ20PartsQ20Q26Q20AccessoriesQQadiZ2869Q QcmdZViewItem?hash=item160251619424&

16T
http://cgi.ebay.com/ebaymotors/428-16-TOOTH-FRONT-ENGINE-SPROCKET-PIT-BIKE-XR50-CRF50_W0QQitemZ370059939801QQcmdZViewItem?hash=ite m370059939801&

17T
http://cgi.ebay.com/ebaymotors/_Motorcycle-Parts-Accessories__428-17-TOOTH-FRONT-ENGINE-SPROCKET-PIT-BIKE-XR50-CRF50_W0QQitemZ360060919752QQad
nZMotorcycleQ20PartsQ20Q26Q20AccessoriesQQadiZ2863 QQcmdZViewItem?hash=item360060919752&

IronFist
06-18-2008, 04:14 PM
Wow do you have any pics?

I think he meant of the mods??? 8)

ExtremeModz
06-18-2008, 04:27 PM
Wow do you have any pics?

I think he meant of the mods??? 8)

yes, I am planning on posting full write ups and pics on all of them when I get the time. I do not want to go off topic here.

kczukiman
06-18-2008, 05:05 PM
Wow do you have any pics?

I think he meant of the mods??? 8)

yes, I am planning on posting full write ups and pics on all of them when I get the time. I do not want to go off topic here.

Yes I was talking about pics of your mods.So yes please by all means stay on topic and welcome back. :wink:

AZ200cc
06-18-2008, 05:18 PM
Wow do you have any pics?

I think he meant of the mods??? 8)

I hope that what's he meant :lol:

kczukiman
06-18-2008, 05:31 PM
Wow do you have any pics?

I think he meant of the mods??? 8)

I hope that what's he meant :lol:

Don't make me go and edit my post. :oops: :lol: :lol: :lol:

duck
06-18-2008, 09:56 PM
Oke, got a 15 coming. Prolly should have just grabbed 14, 15, 16, 17 to see how the changes work but I'm in a cheap mood today...

red2003
06-19-2008, 07:47 AM
Wow do you have any pics?

I think he meant of the mods??? 8)

yes, I am planning on posting full write ups and pics on all of them when I get the time. I do not want to go off topic here.

Yes I was talking about pics of your mods.So yes please by all means stay on topic and welcome back. :wink:

Yeah, welcome back.. Please post a pic of the bike with all the mods. We're all really, really interested to see it.

Trebek
06-19-2008, 07:55 AM
Extrememodz, great to have your modification excellence on this forum. What kind of bike do you have again?

IronFist
06-19-2008, 10:22 AM
Wow do you have any pics?

I think he meant of the mods??? 8)

yes, I am planning on posting full write ups and pics on all of them when I get the time. I do not want to go off topic here.

Yes I was talking about pics of your mods.So yes please by all means stay on topic and welcome back. :wink:
:wink:

Kawazacky
06-19-2008, 04:05 PM
Can we see some pics of that KLX400 shock? Is it the same as a Suzuki rear shock? I'd like to replace my crappy rear suspension.

How does that 65 watt halogen bulb work for you? I have a 45 watt, but I'd like more light. How does it stack up against a low-wattage HID?

ExtremeModz
06-19-2008, 06:59 PM
My 60 or 65 watt bulb (Can't remember) does not even hold a candle to a HID. The reason I don't use HID is because I ride on road also and it would blind everyone within a quartermile of my bike. HID is the best you can get if your using your bike for offroad only and you want the brightest light possible coincidentally also with the least energy draw. They do make some low beam HID's bulbs that may work with our headlight but from what I understand they all use the same wattage. The light is not making the draw the amp box is. They can get away with it in some cars because the way they reflect in the assmb is different so its not as intense or direct.

This is the 65W package you want from Denis Kirk. ($2.00)

http://img255.imageshack.us/img255/6245/bulbbulbjc8.jpg (http://imageshack.us)
http://img255.imageshack.us/img255/6245/bulbbulbjc8.f960e0380f.jpg (http://g.imageshack.us/g.php?h=255&i=bulbbulbjc8.jpg)

This is my KX 400 rear shock when I first brought it home. I started out with the R1 but quickly found out it was way too soft for offroad use, in fact it was actually much thiner and less HD then the stock spring. I would however recommend it for a road bike. I will cover both shocks in a future writeup. Until then this is the picture of it when I got it. If you have more questions about my mods you can PM me or I will be covering them in future posts. The mods tend to get angry when ppl get OT :wink:

http://img255.imageshack.us/img255/9830/shockhd8.jpg (http://imageshack.us)
http://img255.imageshack.us/img255/9830/shockhd8.2e67651142.jpg (http://g.imageshack.us/g.php?h=255&i=shockhd8.jpg)

red2003
06-19-2008, 07:04 PM
Porterz, why are you lying about your bike being a GY5. We all know it's a GY2. If you want us to have any respect for you, you can't come back on AGAIN and start all the lies. It just takes you down the same old road and in a week or 2 you are out and life gets back to normal here. Haven't you learned anything???

ExtremeModz
06-19-2008, 07:20 PM
Porterz, why are you lying about your bike being a GY5. We all know it's a GY2. If you want us to have any respect for you, you can't come back on AGAIN and start all the lies. It just takes you down the same old road and in a week or 2 you are out and life gets back to normal here. Haven't you learned anything???

I think you have the wrong thread. This is a sprocket thread, nothing about one bike or another just about parts. Nobody is lieing or being disrespectful about anything you sound very upset or offended what's wrong with you?

ExtremeModz
06-19-2008, 07:33 PM
I thought I recognized the name now I remember. Your the one that posted about the R1 shock in the first place that is why your so mad.. I am sorry, it simply sucks offroad maybe you like it but that's no reason to come in and hijack a thread and start raving. If you can't be nice please don't say anything. That was very rude. I know you want people to look up to you for thinking of using it and you can't handle me putting it down by not saying how wounderfull it is. I am sorry it's not as wounderfull as you say it is but that is my right to have my own opinion about it and tell people the truth. I just wish I did not waste my money on it and I don't want others to make the same mistake.

06-19-2008, 07:50 PM
Here we go..... :roll:

kczukiman
06-19-2008, 07:55 PM
I was rite again! :D And this time it only took me two post to figure it out.Its kind of like the China Riders version of Where's Waldo...

red2003
06-19-2008, 08:32 PM
I thought I recognized the name now I remember. Your the one that posted about the R1 shock in the first place that is why your so mad.. I am sorry, it simply sucks offroad maybe you like it but that's no reason to come in and hijack a thread and start raving. If you can't be nice please don't say anything. That was very rude. I know you want people to look up to you for thinking of using it and you can't handle me putting it down by not saying how wounderfull it is. I am sorry it's not as wounderfull as you say it is but that is my right to have my own opinion about it and tell people the truth. I just wish I did not waste my money on it and I don't want others to make the same mistake.

Hehe, dude you fell for it hook, line and sinker. You are so predictable, I never said I was talking to YOU, I addressed Porterz who you obviously are since you replied to me. And you just proved it to all of us. You have a GY2, not a GY5. You are full of crap and I am calling you out on it. Would a moderator please ban him again. Thanks.

frostbite
06-20-2008, 08:53 AM
ExtremeModz has been banned. Again.

I think this makes it #4?