Original Tires Goodyear SureGrip 280/85 x 16

34.0"  101 lbs

7.5" clearance between rear tires

16.5" from ground to center of hub on original tires.

15.5" ground clearance

(tread-width 8.5"/220mm, thread depth 16mm (Trelleborg 20mm!)



[notes WJM: 

Goodyear 280/85x16: 83cm tall, 27cm wide]

Danubiana (Bargrip/NATO) 9.00x16: 86cm tall, 28cm wide ]

(watch out for the difference of pressure vs no pressure, when calculating storage/transport requirements!)



New Tires Michelin 11.00 x 16 XCL

38.0"  131 lbs

2.5" clearance between rear tires

19.0" from ground to center of hub on new tires.

18.0" ground clearance

(tread-width 9.5"/240mm)



Michelin XML 325/85x16
xxxxxxxxxxxxxxxxxxxxxxx
Size 325/85R16
Load Range D
Loaded radius 17.7"
Overall Diameter 38.7"
Overall Width 12.9"
Approved Rims 9.00" - - -
Rev Per Mile 540
Tread depth 21/32"
Maximum Speed 62mph 
xxxxxxxxxxxxxxxxxxxxxx


Interco	TSL Bogger 38.5x11x16 
113.5 lbs



Goodyear Studded Suregrip 280/85 x 16 = 42.5kg
(on Volvo rim)

Trelleborg Cross Country 280/85 x 16 = 52.5kg
(on Volvo rim)

Michelin XZY 7.50 x 16 = 42.5kg
(on Land Cruiser J5/J4-series split rim)


Michelin XZL-retread 9.00x16 - 255/100x16, no rim = 40kg

Fedima (=Michelin retread) 9.00 x 16, no rim, = 41 Kg


Volvo rim = 30lbs/13.5kg
(7 November 2006)

[correction WJ!: 18kg, not 13.5kg!!!! (or 40lbs, not 30!) ]

[14 April 2009]






	5000rpm & 7.6:1 diff ratio & 34" tires = 108km/h

	5000rpm & 7.1:1 diff ratio & 34" tires = 116km/h

	5000rpm & 6.0:1 diff ratio & 34" tires = 136km/h



	5000rpm & 7.6:1 diff ratio & 36" tires = 114km/h

	5000rpm & 7.1:1 diff ratio & 36" tires = 123km/h

	5000rpm & 6.0:1 diff ratio & 36" tires = 144km/h



	5000rpm & 7.6:1 diff ratio & 38" tires = 120km/h

	5000rpm & 7.1:1 diff ratio & 38" tires = 130km/h

	5000rpm & 6.0:1 diff ratio & 38" tires = 152km/h














Ratio's & split-factor between 4sp & 5sp (5sp is default on TGB20, with 7.6 diff's):

		S4/18/3		S5/18/3

	1st	3.87		3.92 (=0.9872x)
	2nd 	2.08		2.47 (=0.8421x)
	3rd  	1.39		1.76 (=0.7898x)
	4th  	1.0		1.27 (=0.7874x)
	5th	-		1.0

	R    	4.16		3.7  (=1.1243x!)
	H    	1.0		1.0
	L    	2.39		2.39




Diff ratio's:

	9x33 = 3.67
	9x31 = 3.44
	11x32 = 2.91



Diff & axle ratio's:

	 9x33 = 3.666666 (x 2.06 = 7.553333 (hence not 7.56, but still 7.6....;))
	 9x31 = 3.444444 (x 2.06 = 7.095555 = 7.1)
	11x32 = 2.909090 (x 2.06 = 5.992727 = 6.0)


'ratio split' between the 3 diff types:

	3.666666	\		\		
			    1.064516	 \	
	3.444444   \	/		  \
			1.184277x		1.260417x
	2.909090   /			  /	




hubs 16x33 = 2.06 


1st gear & low-range combined:

	S4: 
	4x4 = 55.4957999999
	6x6 = 65.7085687500

	S5: 
	6x6 = 70.8515500001








Ratio's & inter-gear split-factor:

		S4/18/3		S5/18/3


	1st	3.87		3.92 (=0.9872x)

		(1.8606x)	(1.5870x)

	2nd 	2.08		2.47 (=0.8421x)

		(1.4964x)	(1.4034x)

	3rd  	1.39		1.76 (=0.7898x)

		(1.3900x)	(1.3858x)

	4th  	1.0		1.27 (=0.7874x)

				(1.2700x)

	5th	-		1.0



	R    	4.16		3.7  (=1.1243x!)
	H    	1.0		1.0
	L    	2.39		2.39




Some aftermarket options:


Fixed overdrive, PTO-port-mounted: 1.5x

5sp gearbox overdrive, gears 1-4 unchanged: 0.795x

T-case underdrive, high-gear unchanged: 3.7x





Maserati Bi-Turbo / ZF S5/18/3:

	1st	3.42
	2nd	1.94
	3rd	1.39
	4th	1.0
	5th 	0.795

	R	3.67










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