Gear box TS1 ?

Anything related to Lambrettas... ask tech questions, post helpful info, or just read and learn.
User avatar
lockman69
registered user
Posts: 257
Joined: Wed Jan 07, 2009 12:09 pm
Location: Chelmsford, Essex
Contact:

Would a TS1 pull an Italian Li150 (not special) box with 47/18 sprockets with a 4-44 final ratio ?

60/110 crank / JL3 Pipe...or would this gearing be to tall?

Cheers

:? :? :?
User avatar
RICSPEED
registered user
Posts: 3334
Joined: Sun Jan 04, 2009 11:30 pm
Location: YORK

not sure with a jl ...most go for 16 /17 and 46 crown ....i would think it would be ok
Its in bits scooter club: www.facebook.com/groups/132415046859320
User avatar
drunkmunkey6969
Moderator
Posts: 2838
Joined: Sun Jan 04, 2009 1:42 pm
Main scooter: '69 Lambretta GP
Location: North Yorkshire
Contact:

Good question, and the answer is........it depends!! lol.

When making gearing choices, you'd be wise to take into account a few variables:

1) Scooter type/weight - full body series 2, or cutdown GP on vega leggies?
2) Your type/weight - 6'6" tall and 22 stone, or 5'2" and 8 stone?
3) Riding type/style - solo riding with no luggage and only a few hills where you live, or two's up loaded with luggage going uphill into a headwind?
4) Type of tune on the cylinder, with what pipe and carb - Standard TS1 with 35mmTMX and JL4, or touring tune to cylinder with JL3, 30mm Delly and a variable ign kit?

And so on........

On 'average' (if there is such a thing!) i'd say TS1's will fall between 4.8 and 5.2 for MOST users. But 4.25-4.60 can be achieved with the right combination. eg - TS1 with 'touring tune' to cylinder, 30mm carb, ADS touring pipe. A full bodied series 3 with a solo rider and no luggage will pull those areas of gearing (4.2-4.6) easily, but a tall-fat bloke, with fat wife and luggage on board might struggle a bit on such combinations and need to be looking at the 4.8-5.2 options instead.

Horses for courses.....
See our YouTube scooter channel for Tech-help: https://www.youtube.com/c/TheScooterFactory/videos
User avatar
lockman69
registered user
Posts: 257
Joined: Wed Jan 07, 2009 12:09 pm
Location: Chelmsford, Essex
Contact:

drunkmunkey6969 wrote: a tall-fat bloke, with fat wife and luggage on board might struggle a bit.....
I don’t remember ever meeting you Dan, how would you know so much about me :lol: :lol:

Cheers Guys....I think I shall stick with the standard 5-2 GP2 Box
User avatar
GP Kevo
registered user
Posts: 321
Joined: Wed Mar 11, 2009 7:48 am
Main scooter: 1969 150 DL / GP225 TS1
Location: Warsaw
Contact:

Too tall. Mine wouldn't pull forth with a Taffspeed road pipe, unless I was going down hill.
WINTERMODEL150
registered user
Posts: 436
Joined: Sun Oct 17, 2010 5:31 pm
Main scooter: lambretta ld auto
Contact:

I had a taffspeed pipe ts1 4.4 ratio and did'nt like it i was up and down the gearbox all the time...

Changed me gearing to 4.9 and fitted a franspeed race pipe now it flys in all gears love it !!!!!!!!!!!!!!

Dean
Post Reply Previous topicNext topic
  • Information
  • Who is online

    Users browsing this forum: Semrush [Bot] and 13 guests