Here you learn how to recognise the gears and cluster from the different types of gearboxes used in the Lambretta scooters.
Unlike the older models using a 3-speed model, all LI series (starting 1958) have a 4-speed gearbox.
First Gear
First gear on the Lambretta Li range gearbox is always obvious in a pile of gears as it has the teeth on its side face that engage with the kick-start mechanism. All we need now is to identify which gearbox it belongs to.
Teeth
Gearbox
51
Li 125 series 1 & 2, and early series 3 Li125 series 2 Li150 rallymaster
50
GP 125/150/200 & SX 150 & Li125 special 117.5mm Li 150, Li150 special & late series 3 Li125 115.3mm
49
TV175 & SX 200
47
TV/GT 200
Second Gear
Second gear can be recognised by it having the internal dog nearly flush on one face and a high boss on its other face. This fact is especially important as second gear on a TV200 could be confused with third gear from another gearbox. All we need now is to identify which gearbox it belongs to.
Teeth
Gearbox
42
Li 125 series 1 & 2, and early series 3 Li125 series 2 Li150 rallymaster, GP125/150/200, SX150 Li125 special
41
Li 150 special & late series 3 Li125 (106.5mm) series 1,2 & 3 Li150 (105.5mm)
40
TV175 & SX 200
39
TV/GT 200
Third Gear
Third gear can be recognised by it having the internal dog more or less central and a lower boss than second.
Teeth
Gearbox
39
Li150 special, late type series 3 Li125 (97.2mm) see note
GP125/150/200, SX150, series 1,2 and early series 3 li125
37
SX200, TV175 (95.6mm) series 1,2 & 3 Li150 (97.2mm)
36
TV/GT 200
39 tooth third gear note: It is important to be careful with this third gear, as there are 2 different types and these can only be separated by measuring over 5 teeth, early types will be 33.0 mm and later ones 33.8mm. These mesh with a different profile cluster to match so it is VERY important that you get this right.
Fourth Gear
Fourth gear is another one that is easy to identify, it has the dogs flush on one face and no oil grooves on the other face. All we need now is to identify which gearbox it belongs to.
Teeth
Gearbox
36
Li125 special GP125 GP200
35
Li 125 series 1 & 2, and early series 3 Li125 Li 150 special & late series 3 Li125, GP150, SX150
34
series 1,2 & 3 Li150 and rallymaster
33
TV175 & SX 200
32
TV/GT 200
Cluster / Christmas Tree
Hopefully you won’t have a problem identifying this. It is very straightforward to identify what gearbox this cluster belongs to, simply count the teeth.
09-12-16-19 : series 1 & 2 li125, also early series 3 Li 125
09-12-17-20 : series 2 Li150 rallymaster
10-12-15-18 : GP/DL 125 & GP/DL 200 also Li 125 Special
10-12-15-19 : SX 150 & DL/GP 150
11-13-17-19 : Li 150 special & series 3 Li125 late type
Hopefully you won’t have a problem identifying this. It is very straightforward to identify what gearbox this cluster belongs to, simply count the teeth.