OP
@pawel1380 avatar
UTC

Member
Vespa Sei Giorni 2022
Joined: UTC
Posts: 27
Location: Cracow
 
Member
@pawel1380 avatar
Vespa Sei Giorni 2022
Joined: UTC
Posts: 27
Location: Cracow
UTC quote
Hello
I would like to change the wheels on my Sei Giorni to 13 inches. From the back I know I wants size 140/60/13. The problem starts with the front. Some sources say that I should wear 120/70/13 (sipscooter-shop) and others that 130/60/13 ...
The question is which solution is better because I understand that 130/60/13 is more suitable for the size of the reference wheel 120/70/12, but we have a wider tire at the front .. please write what you put on in front.๐Ÿ™
Thank you
@dresgts avatar
UTC

Member
2015 GTS 300 SS
Joined: UTC
Posts: 24
Location: SF Bay Area
 
Member
@dresgts avatar
2015 GTS 300 SS
Joined: UTC
Posts: 24
Location: SF Bay Area
UTC quote
pawel1380 wrote:
Hello
I would like to change the wheels on my Sei Giorni to 13 inches. From the back I know I wants size 140/60/13. The problem starts with the front. Some sources say that I should wear 120/70/13 (sipscooter-shop) and others that 130/60/13 ...
The question is which solution is better because I understand that 130/60/13 is more suitable for the size of the reference wheel 120/70/12, but we have a wider tire at the front .. please write what you put on in front.๐Ÿ™
Thank you
Hey!

Just installed 13s on my 2015 GTS 300 SS this past weekend and I love the way the scooter rides. I went 140/60-13 rears and 120/70-13 fronts with the Michelin City Grip 2s. The scooter is hitting corners really well. Overall super happy with the upgrade!
Forum member supplied image with no explanatory text
@rallygeek avatar
UTC

Hooked
Polaris Grey Rally 200, Blue Marine Primavera ET3, Coral Red 50 Special
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Location: Melbourne
 
Hooked
@rallygeek avatar
Polaris Grey Rally 200, Blue Marine Primavera ET3, Coral Red 50 Special
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UTC quote
I used citygrip 2's sizes 140/60 rear and 130/60 front on one my bikes with mp3 rims.
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UTC

Member
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UTC quote
I went 140/60/13 in rear and 130/60/13 front, Pirelli Angels
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OP
@pawel1380 avatar
UTC

Member
Vespa Sei Giorni 2022
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Posts: 27
Location: Cracow
 
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@pawel1380 avatar
Vespa Sei Giorni 2022
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Posts: 27
Location: Cracow
UTC quote
and done
Thanks
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@pigletpilot avatar
UTC

Molto Verboso
Gina, 1965 Vespa 180SS, Bella,1968 Vespa 150 Super, Mia, 2017 Vespa Primavera 70th Anniversary 150ie, Gabriella, 2017 GTS300 ABS
Joined: UTC
Posts: 1941
Location: Hamilton/Kirikiriroa, NZ
 
Molto Verboso
@pigletpilot avatar
Gina, 1965 Vespa 180SS, Bella,1968 Vespa 150 Super, Mia, 2017 Vespa Primavera 70th Anniversary 150ie, Gabriella, 2017 GTS300 ABS
Joined: UTC
Posts: 1941
Location: Hamilton/Kirikiriroa, NZ
UTC quote
What size did you decide on?
@buggsy avatar
UTC

Addicted
GTV / GTS, 1961 Lambretta LI Series 3
Joined: UTC
Posts: 537
Location: Somewhere on the Island of Great Britain, East Coast, Last time I looked.
 
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@buggsy avatar
GTV / GTS, 1961 Lambretta LI Series 3
Joined: UTC
Posts: 537
Location: Somewhere on the Island of Great Britain, East Coast, Last time I looked.
UTC quote
I ride a GTV/GTS and ride on 140/70/12 Rear and 120/70/12 Front, 13" rims, Continental conti-twist tires, apart from the motorways the road system is very winding and have never had problems even in wet weather.
@mayorofnow avatar
UTC

Molto Verboso
2020 GTS 300 HPE
Joined: UTC
Posts: 1389
Location: NYC
 
Molto Verboso
@mayorofnow avatar
2020 GTS 300 HPE
Joined: UTC
Posts: 1389
Location: NYC
UTC quote
As someone spending the morning in-the-bowels of JavaScript object serialization, ๐Ÿ˜…
Continental's web developer missed a spot
Continental's web developer missed a spot
@dresgts avatar
UTC

Member
2015 GTS 300 SS
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Posts: 24
Location: SF Bay Area
 
Member
@dresgts avatar
2015 GTS 300 SS
Joined: UTC
Posts: 24
Location: SF Bay Area
UTC quote
pigletpilot wrote:
What size did you decide on?
If you zoom in, it looks like he went with 120 for the frontโ€ฆ
OP
@pawel1380 avatar
UTC

Member
Vespa Sei Giorni 2022
Joined: UTC
Posts: 27
Location: Cracow
 
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@pawel1380 avatar
Vespa Sei Giorni 2022
Joined: UTC
Posts: 27
Location: Cracow
UTC quote
yes 120/70 on front and 140/60 on rear
@motovista avatar
UTC

Veni, Vidi, Posti
GT 200
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Posts: 9255
Location: Main Street, Watts
 
Veni, Vidi, Posti
@motovista avatar
GT 200
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Posts: 9255
Location: Main Street, Watts
UTC quote
BUGGSY wrote:
I ride a GTV/GTS and ride on 140/70/12 Rear and 120/70/12 Front, 13" rims....
That's a stretch.
UTC

Enthusiast
2017 GTS Super
Joined: UTC
Posts: 76
Location: Kalifornia
 
Enthusiast
2017 GTS Super
Joined: UTC
Posts: 76
Location: Kalifornia
UTC quote
Curious, is anyone tuning the variator to compensate for the additional rotating mass of the 13 inch wheel package?
@buggsy avatar
UTC

Addicted
GTV / GTS, 1961 Lambretta LI Series 3
Joined: UTC
Posts: 537
Location: Somewhere on the Island of Great Britain, East Coast, Last time I looked.
 
Addicted
@buggsy avatar
GTV / GTS, 1961 Lambretta LI Series 3
Joined: UTC
Posts: 537
Location: Somewhere on the Island of Great Britain, East Coast, Last time I looked.
UTC quote
Sorry Motovista I should have put 13" rim dia is 12" bead to bead.
rear
rear
โš ๏ธ Last edited by BUGGSY on UTC; edited 1 time
@buggsy avatar
UTC

Addicted
GTV / GTS, 1961 Lambretta LI Series 3
Joined: UTC
Posts: 537
Location: Somewhere on the Island of Great Britain, East Coast, Last time I looked.
 
Addicted
@buggsy avatar
GTV / GTS, 1961 Lambretta LI Series 3
Joined: UTC
Posts: 537
Location: Somewhere on the Island of Great Britain, East Coast, Last time I looked.
UTC quote
Front
Forum member supplied image with no explanatory text
@steelbytes avatar
UTC

Veni, Vidi, Posti
2019 GTS300 HPE SuperTech 66,000km
Joined: UTC
Posts: 6783
Location: Batmania aka Melbourne, Australia
 
Veni, Vidi, Posti
@steelbytes avatar
2019 GTS300 HPE SuperTech 66,000km
Joined: UTC
Posts: 6783
Location: Batmania aka Melbourne, Australia
UTC quote
BUGGSY wrote:
13" rim dia is 12"
ah .... 13=12? seriously?

also your pics appear to show standard gts rims?
@buggsy avatar
UTC

Addicted
GTV / GTS, 1961 Lambretta LI Series 3
Joined: UTC
Posts: 537
Location: Somewhere on the Island of Great Britain, East Coast, Last time I looked.
 
Addicted
@buggsy avatar
GTV / GTS, 1961 Lambretta LI Series 3
Joined: UTC
Posts: 537
Location: Somewhere on the Island of Great Britain, East Coast, Last time I looked.
UTC quote
Wheel rim dia, tire bead width dia
Forum member supplied image with no explanatory text
@steelbytes avatar
UTC

Veni, Vidi, Posti
2019 GTS300 HPE SuperTech 66,000km
Joined: UTC
Posts: 6783
Location: Batmania aka Melbourne, Australia
 
Veni, Vidi, Posti
@steelbytes avatar
2019 GTS300 HPE SuperTech 66,000km
Joined: UTC
Posts: 6783
Location: Batmania aka Melbourne, Australia
UTC quote
BUGGSY wrote:
Wheel rim dia, tire bead width dia
ok, now I understand what you're saying
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