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31 Jan 2007
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Veteran HUBBer
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Join Date: Nov 2002
Location: Surrey, UK
Posts: 183
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3AJ Series 1 & 2 Gearing.
3AJ Tenere model: Series 1 viz Series 2 Gearing.
Hi Guys,
I have been looking around, and wonder if anybody can confirm the gearing differences between the Series 1 & 2 models of the 3AJ?
This is what I appear to have found:-
.......... Series 1 : Series 2
Primary Gearing:
1st Gear - 31/12 : 31/12
2nd Gear - 27/17 : 27/17
3rd Gear - 24/20 : 24/20
4th Gear - 21/22 : 21/22
5th Gear - 19/24 : 21/27 ***
Secondary Gearing:
Front Sprocket - 15 : 15
Rear Sprocket. - 40 : 45 ***
Chain Links.... - 104 : 106 ***
If the above is correct, then I assume the Series 2’s 5th gear lessens the “strain” on the gearbox? The rear chain sprocket compensates to deliver similar ‘cruising’ speed performance? And the chain length is altered to allow for the larger rear sprocket?
I have a Series 1 3AJ. So, would I gain the Series 2 “improved reliability” by changing the 5th Gear, Rear Sprocket, and Chain length?
(The only other model differences I can see are the size of the oil cooler and engine paint colour).
Appreciate your confirmation, comments and views. Thanks.
Ciao,
Geoff
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26 Aug 2009
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Registered Users
HUBB regular
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Join Date: Jun 2008
Location: London,UK
Posts: 53
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Quote:
Originally Posted by GeoffE
3AJ Tenere model: Series 1 viz Series 2 Gearing.
Hi Guys,
I have been looking around, and wonder if anybody can confirm the gearing differences between the Series 1 & 2 models of the 3AJ?
This is what I appear to have found:-
.......... Series 1 : Series 2
Primary Gearing:
1st Gear - 31/12 : 31/12
2nd Gear - 27/17 : 27/17
3rd Gear - 24/20 : 24/20
4th Gear - 21/22 : 21/22
5th Gear - 19/24 : 21/27 ***
Secondary Gearing:
Front Sprocket - 15 : 15
Rear Sprocket. - 40 : 45 ***
Chain Links.... - 104 : 106 ***
If the above is correct, then I assume the Series 2’s 5th gear lessens the “strain” on the gearbox? The rear chain sprocket compensates to deliver similar ‘cruising’ speed performance? And the chain length is altered to allow for the larger rear sprocket?
I have a Series 1 3AJ. So, would I gain the Series 2 “improved reliability” by changing the 5th Gear, Rear Sprocket, and Chain length?
(The only other model differences I can see are the size of the oil cooler and engine paint colour).
Appreciate your confirmation, comments and views. Thanks.
Ciao,
Geoff
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How can you tell what series the bike is? Mine could be either? Is there a frame number series I can check?
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26 Aug 2009
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Registered Users
Veteran HUBBer
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Join Date: Dec 2008
Location: Denmark
Posts: 1,417
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Try to use Gearing Commander: Motorcycle Gearing Ratio Sprocket RPM Speed Chain Calculator to play with youre gearing.
I've added the 1990 xt 600e, the gearing are exactly the same on my 2003 model.
Ive gone from 15/45/106 to 15/47/106. It suits my needs better and I've also got a 14t front sprocket for really serious offroad/singletrack.
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31 Aug 2009
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Registered Users
New on the HUBB
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Join Date: Dec 2007
Location: Karlsruhe / Germany
Posts: 11
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1. series built only 1988
2. series built from 1989 -
first series had problems with high abrasion on the gearing
in the second series change of primary gearing and oil flow for cooling the gearing.
__________________
Cheers Boris
"Adventure is just a romantic name for trouble." Louis L´amour
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