Gearing on ZX 700?
- Thread starter JustinB
- Start date
C
clutch man
Well-known member
That shoulds be a good gear setup for your track and motor.
Current gearing
I ran a 2.25"x156" on my 700 this winter at 21-43 gearing....goes way fast still but track speed when climbing sucked. I think I need to drop a tooth or two yet so you're probably sitting about perfect. Any idea what link chain you're running? Not sure if the one I have will still work if I gear down.
I ran a 2.25"x156" on my 700 this winter at 21-43 gearing....goes way fast still but track speed when climbing sucked. I think I need to drop a tooth or two yet so you're probably sitting about perfect. Any idea what link chain you're running? Not sure if the one I have will still work if I gear down.
19/44 is the bomb. A "used" 72 link works with no tensioner. A new 72 won't fit.
J
JustinB
Well-known member
I would buy a chain. No offence but a stretched chain is a time bomb! Once you stretch a chain it loses its strength so your taking a weak chain and adding a ton of load on it. So I would rather buy a new chain than risk the chance of busting an old one and then ruining a motor. Thats just my reasoning, just remember a tight chain will "stretch" and metal can only stretch so far before it snaps and a new chain is cheaper than a new motor.
The chain doesn't have to be 7/8th's worn out for this to work. Slightly used is all it takes to make this work. Like all chains are after a few miles. We're not saying to take a worn out POS and put it in your sled.
Otherwise just run your 19/43.
Otherwise just run your 19/43.
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I think your chart (pic) is for a REV. 44 is the biggest in a Zx case I think. ???
A little more ratio. Same as a smaller one on top - just not as much ratio change. Many believe that a 19 is really about as small as you really want to go on the silent chain _ that a tighter bend is not good for it. Of course there is also the issue that you have less and less teeth engaged in the chain for quicker wear. By jumping UP on the bottom you keep your 19 up top.
Also - by going DOWN a toth on top adds considerably to your "dog-leg" of the chain. Prolly not a real big issue in off trail speeds, but certainly does lose some efficiency. Likely a bigger deal for higher speeds. (You hafta run your adjuster in a lot more v/s a strait chain.)
I can certainly appreciate your concern of the chain - and I reccommend a 15 wide. Only need a wide gear on the bottom and space it out accordingly.
May need to cup the gear to fit the nut tho - depending on the gear that you git.
I blew my share of 13's. Only 15 I blew was after too many hard crick crossings.
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A little more ratio. Same as a smaller one on top - just not as much ratio change. Many believe that a 19 is really about as small as you really want to go on the silent chain _ that a tighter bend is not good for it. Of course there is also the issue that you have less and less teeth engaged in the chain for quicker wear. By jumping UP on the bottom you keep your 19 up top.
Also - by going DOWN a toth on top adds considerably to your "dog-leg" of the chain. Prolly not a real big issue in off trail speeds, but certainly does lose some efficiency. Likely a bigger deal for higher speeds. (You hafta run your adjuster in a lot more v/s a strait chain.)
I can certainly appreciate your concern of the chain - and I reccommend a 15 wide. Only need a wide gear on the bottom and space it out accordingly.
May need to cup the gear to fit the nut tho - depending on the gear that you git.
I blew my share of 13's. Only 15 I blew was after too many hard crick crossings.
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*ERASED*
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I ran 22/43 & 23/43 in my ZX Renegade-800 with a 144x15x1,75" track,
and I'm not happy at all with that big "Dog-leg" that these combinations create
Any suggestions of a similar ratio but with other sprockets that create a much less "Dog-leg" ???
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Doo the math...
We have told you that 19/43 is a good ratio and is stock for many Zx Summits. Also that 19/44 is PERFECT with a broken in chain.
There is a 4 tooth count on the sprockets per 2 pin chain count ratio on change. (And chains only come in evens)
So you are obviously running a longer chain than we are. So if you up your tooth count to total 4 more than 19+43 (or 19+44 for extra tight) you will have the least leg possible. The only trouble is that I am not sure how available bottom gears are bigger than 44? I think you can squeeze a 45 in there? Be sure to confirm with somone else. I aint done it.
Otherwise you need to drop to the next shorter chain length.
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I'm now running a 74 pitch chain with my both gearing.
Gear ratio :
* 43/22 = 1,9545
* 43/23 = 1,8695
* 43/19 = 2,2631
* 44/19 = 2,3157
Since I'm not running a Summit in the deep and steep there is no point for me to have such low gearing as 43/19 or 44/19
But I still want to have a gearing that make as little "Dog Leg" as possible.
I have been told that there is no problem fitting a 44, 45, 46 or even a 47 bottom gear in the ZX / REV chain case
( except 2003 REV & 2003,5 REV ).
Any ideas ?
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I ***_u_me that you are running a Lynx?
So run the 23/43 combo then.
I would want someone to verify that! I think 45 is as big as you can fit in the Zx case. (and I'm not even 100% on the 45) The Revs and newer have bigger openings I think.
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So run the 23/43 combo then.
I would want someone to verify that! I think 45 is as big as you can fit in the Zx case. (and I'm not even 100% on the 45) The Revs and newer have bigger openings I think.
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1. I do not understand you !?
2. I do alot of boondocking and aggresive trail riding between 350 - 800 Meters ( 1150 - 2650 feet )
and want a combination that give me less "Dog Leg"
Any suggestions ?
3. No, the opening in the chain case is the same in the ZX and REV
( Except the 2003 REV and 2003,5 REV ).
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A
Ancient Sledder
Member
19-44 gives me 42 mph track speed in the fluff. Stock engine, stock exhaust. My can gives me the same speed but MUCH louder, so I don't run it. Team secondary clutch and the original 151 Bombi track. This year it gets 3 inch pitch drivers and a 153 Camo Extreme. I might put a spare 162 on it that I have kicking around, but I don't know if it will pull that much track.
Hey Im running a 17/48 in my 01 700hm. My track speed is between 35 to 40ish with a 151X2.0" . Off the bottom pull is excelent and despite what you think there is room in the case for a sprocket that big. I say the lower the better after all you have varyable clutches working for you. My top speed is still about 78mph on the road, doo secondary's shift out like overdrive (more than 1:1) is what i been told.
i run a 174 on my 01 summit 700 and im geard at 19/47 its not the fastest down the trail but works great climbin and in the deep snow
