71-72 "Yellow Tank" 125	73 "Radial" 125	74 "Red Frame" 125
Engine/Frame ID	984 through 984.3	984.5	984.5
Bore/Stroke (metric)	55mm X 52mm	55mm X 52mm	55mm X 52mm
Stock Carb	N/A	N/A	N/A
Horsepower	19	19	19
Compression Ratio	13:01	13:01	13:01
Primary Drive	2.304:1 (23/53)	2.304:1 (23/53)	2.304:1 (23/53)
1st Gear Ratio	3.1:1  (9/28)	3.1:1  (9/28)	3.1:1  (9/28)
2nd Gear Ratio	2.16:1  (12/26)	2.16:1  (12/26)	2.16:1  (12/26)
3rd Gear Ratio	1.64:1  (14/23)	1.64:1  (14/23)	1.64:1  (14/23)
4th Gear Ratio	1.31:1  (16/21)	1.31:1  (16/21)	1.31:1  (16/21)
5th Gear Ratio	1.111:1 (18/20)	1.111:1 (18/20)	1.111:1 (18/20)
Teeth: C/S Sprocket	14	14	14
Teeth: Rear Sprocket	62	62	62
Susp Travel - Front	6.7"	6.7"	190mm
Susp Travel - Rear	3.5"	3.5"	90mm
Weight	220 Dry	220 Dry	220 Dry
Tires	2.75X21, 3.50X18	2.75X21, 3.50X18	2.75X21, 3.50X18
Rims	1.60X21, 1.85X18	1.60X21, 1.85X18	1.60X21, 1.85X18
Ignition ADV.	2.4 BTDC	2.4	2.4
Fuel Capacity (Stock)	1.8 Gal	2.5 Gal	2.1 Gal
Std Bore	54.93mm	54.93mm	54.93mm
1st Over (+.25)	55.18mm	55.18mm	55.18mm
2nd Over (+.50)	55.43mm	55.43mm	55.43mm
3rd Over (+.75)	55.68mm	55.68mm	55.68mm
4th Over (+1.00)	55.93mm	55.93mm	55.93mm
Price (MSRP)	N/A	N/A	N/A
	75-76 Falta 125	77-83 Model-511	H20 Cooler
Engine/Frame ID	984.9	511	519
Bore/Stroke (metric)	55mm X 52mm	No Data Available	No Data Available
Stock Carb	N/A
Horsepower	21
Compression Ratio	14.5:1
Primary Drive	2.304:1 (23/53)
1st Gear Ratio	3.1:1  (9/28)
2nd Gear Ratio	2.16:1  (12/26)
3rd Gear Ratio	1.64:1  (14/23)
4th Gear Ratio	1.31:1  (16/21)
5th Gear Ratio	1.111:1 (18/20)
Teeth: C/S Sprocket	14
Teeth: Rear Sprocket	62
Susp Travel - Front	7.87"
Susp Travel - Rear	5.0"
Weight	N/A
Tires	2.75X21, 3.50X18
Rims	1.60X21, 1.85X18
Ignition ADV.	1.8 - 2.0
Fuel Capacity (Stock)	2.1 Gal
Std Bore	54.93mm
1st Over (+.25)	55.18mm
2nd Over (+.50)	55.43mm
3rd Over (+.75)	55.68mm
4th Over (+1.00)	55.93mm
Price (MSRP)	N/A