Author Topic: 8/33 RATIO REAR DRIVE ? ?  (Read 692 times)

Offline 33scup33

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8/33 RATIO REAR DRIVE ? ?
« on: October 31, 2018, 12:34:24 PM »
Looking for an 8/33 ratio rear drive for a mid '70s 850.  Does the 2000 Quota fill the bill ? ?

Thanks ------ Josh

Offline Antietam Classic Cycle

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Re: 8/33 RATIO REAR DRIVE ? ?
« Reply #1 on: October 31, 2018, 12:54:59 PM »
Looking for an 8/33 ratio rear drive for a mid '70s 850.  Does the 2000 Quota fill the bill ? ?

Thanks ------ Josh

A "mid '70s 850" would have had a 7/33 rear drive, not 8/33.
Charlie
http://www.AntietamClassicCycle.com
'69 V700
'69 Ambassador
'76 Convert
'85 Moto Morini 350 K2


Online pete roper

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Re: 8/33 RATIO REAR DRIVE ? ?
« Reply #2 on: October 31, 2018, 02:17:57 PM »
As Charlie says the stock ratio back then was 7/33. An 850/950 from that era will have a problem pulling 8/33 gearing unless it's been severely souped up.

Pete

Offline 33scup33

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Re: 8/33 RATIO REAR DRIVE ? ?
« Reply #3 on: October 31, 2018, 03:43:39 PM »
I have a 7/37 and two 7/33s.  This is for a special project and I need an 8/33.  I'm using a convert trans with a 7/33 now.  I can't use a convert 9/34 or I would.  the closest i can come is the 8/33.

I'm not knowledgeable about Guzzi's and what will fit what, especially with all the different models they make.  I've been told the Cal 111 supposedly is an 8/33, but that there are others.  I have a line on a 2000 Quota V11, and believe it MIGHT be an 8/33.

Josh
« Last Edit: October 31, 2018, 03:52:55 PM by 33scup33 »

Offline Antietam Classic Cycle

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Re: 8/33 RATIO REAR DRIVE ? ?
« Reply #4 on: October 31, 2018, 04:27:27 PM »
I have a 7/37 and two 7/33s.  This is for a special project and I need an 8/33.  I'm using a convert trans with a 7/33 now.  I can't use a convert 9/34 or I would.  the closest i can come is the 8/33.

I'm not knowledgeable about Guzzi's and what will fit what, especially with all the different models they make.  I've been told the Cal 111 supposedly is an 8/33, but that there are others.  I have a line on a 2000 Quota V11, and believe it MIGHT be an 8/33.

Josh

This a list of where the 8/33 gear set was used (according to Stein Dinse). The rear drive housings of these models can be a little different though. One from a EV/California series might be your best bet.

Moto Guzzi 1100 Sport (Vergaser) , BJ 1994 - 1996
Moto Guzzi 1100 Sport Corsa `98-`99 , BJ 1998 - 1999
Moto Guzzi 1100 Sport Inj. , BJ 1996 - 1996
Moto Guzzi 1100 Sport Inj. `96-`99 , BJ 1996 - 1999
Moto Guzzi 1100 Sport Verg. , BJ 1994 - 1996
Moto Guzzi Cali Alu/Titan CAT `03 , BJ 2003 - 2004
Moto Guzzi Cali Classic-Touring 06-`07 , BJ 2006 - 2007
Moto Guzzi Cali EV CAT `03 , BJ 2003 - 2005
Moto Guzzi Cali EV Touring/80 `01-`02 , BJ 2001 - 2002
Moto Guzzi Cali EV `02 , BJ 2002 -
Moto Guzzi Cali EV `97-`00 , BJ 1997 - 2000
Moto Guzzi Cali Jackal `02 , BJ 2002 -
Moto Guzzi Cali Jackal `99-`01 , BJ 1999 - 2001
Moto Guzzi Cali Special Bj. `99-`00 , BJ 1999 - 2000
Moto Guzzi Cali Special Sport `01-`02 , BJ 2001 - 2002
Moto Guzzi Cali Special Sport/Alu `02 , BJ 2002 -
Moto Guzzi Cali Spezial , BJ 1999 - 2000
Moto Guzzi Cali Stone , BJ 2001 - 2003
Moto Guzzi Cali Stone `01-`02 , BJ 2001 - 2002
Moto Guzzi Cali Stone/Met. `02 , BJ 2002 -
Moto Guzzi Cali Stone/Touring CAT `03-`04 , BJ 2003 - 2004
Moto Guzzi Cali Vintage `06-`07 , BJ 2006 - 2007
Moto Guzzi California Aquila Nera `09 - , BJ 2009 -
Moto Guzzi Centauro , BJ 1996 - 1998
Moto Guzzi Centauro V10 , BJ 1996 - 1998
Moto Guzzi Quota ES `99-`01 , BJ 1999 - 2001

Charlie
http://www.AntietamClassicCycle.com
'69 V700
'69 Ambassador
'76 Convert
'85 Moto Morini 350 K2

Offline 33scup33

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Re: 8/33 RATIO REAR DRIVE ? ?
« Reply #5 on: October 31, 2018, 04:40:40 PM »
THANKS CHARLIE ! ! !

THIS WILL BE A GREAT HELP.

JOSH

Offline fotoguzzi

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Re: 8/33 RATIO REAR DRIVE ? ?
« Reply #6 on: October 31, 2018, 04:47:08 PM »
your aware the convert RD uses a 20 tooth spline right?
and the 8x33 will have 10 teeth, you can get creative and weld together 1/2 each of a 20/10 spline coupler. or mod a vert driveshaft by welding on a 10 tooth spline to the rear?
2013 DR 650
Nero Corsa wanted
many Guzzi's loved,  (then sold)
72 Honda Trail 90 my first real motorcycle
 MINNEAPOLIS, MN

Offline 33scup33

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Re: 8/33 RATIO REAR DRIVE ? ?
« Reply #7 on: October 31, 2018, 04:57:57 PM »
Yes, Thank you = In case I didn't.

I grafted a 20 spline yoke onto a 10 spline u-joint and it works just dandy.

Online pete roper

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Re: 8/33 RATIO REAR DRIVE ? ?
« Reply #8 on: November 01, 2018, 03:23:07 AM »
Look, I have just bought a Cali with an 8/33 box. I haven't taken it off and checked it but will if you're interested as I'd love to swap it for a 7/33 especially as it's going to be tugging a chair!

If you've got a decent 7/33 I'll be all over it like a rash! If it's got buggered splines and shitty teeth on the pinion? Not so much!:D

Pete

Online jagwillie

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Re: 8/33 RATIO REAR DRIVE ? ?
« Reply #9 on: November 01, 2018, 01:52:31 PM »
I have a 9/34 if that would do you any good.
Bill Bassett
1976 850-T3 Sidecar rig, "The Great White"
1973 Eldorado
2009 V7C Wife's bike, "Pearl"

Offline 33scup33

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Re: 8/33 RATIO REAR DRIVE ? ?
« Reply #10 on: November 05, 2018, 08:11:01 PM »
Bill,

Isn't the 9/34 for the convert = 20 spline?

Josh

 


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