Version 6.3 of the Lambretta Gearbox Visualiser in Excel xlsx format
Version 1.0 of the VESPA Gearbox Visualiser in Excel xlsx format.
Enjoy, and please feedback in the comments box below.
Update History:
6.3 (09-Mar-2023) Adds ratios for the Indian Sunny FR / Cento 100 3-Speed gearbox. Information kindly provided by Dean Orton.
6.2 (31-Oct-2020) Re-written to show 6-speed gearboxes including the new offering from Charlie Edmonds. The custom gearbox facility now enables you to model your own 6-speed gearbox. Some minor UI tweaks. Removed expired supporter banners and links.
6.1 (26-Aug-2019) Updated with fresh data from RLC on small frame chain options
6.0 (08-Aug-2019) The Visualiser splits to show large frame and small frame Lambretta separately. Added data for RLC’s Cyclone 5 Pro and Vega5 gearboxes. Added a new home page to improve navigation, “Custom Tyre Sizes” so users can add their own tyre data and minor UI tweaks.
5.0 (22-Jan-2018) Cleaner UI, RPM drops between higher gears added, additional graphical comparisons and background improvements. Adds both AF Clo5e ratio 5-speed gearboxes.
4.17 (01-May-2017) Adds ratios for the Casa Performance 4-speed CR and Crimaz CML5 5-speed gearboxes. Some minor changes behind the scenes.
4.16 (23-Mar-2017) Adds ratios for the “late” MB Scooters Ltd MB-5 with very minor adjustments to 5th gear ratio. Also removes references to stretched chains as viable solutions and instead references chain tensioners.
4.15 (14-Dec-2016) Adds the facility to adjust the speed increment in the main visualiser (used to view the whole speed range for seriously fast and scary scooters), and increases front sprocket choices to include 25t
4.14 Adds ratios for the Gori RV4S gearbox (thanks to Martin Corrado for the heads up on this one)
4.13 Adds ratios for MB Scooters Ltd MB-5 gearbox
4.12 Adds 13t drive sprockets to the right hand side of the visualiser, adds 23t and 24t drive sprockets, and adds an error message where chain combinations are unknown.
4.11 Adds 13t drive sprockets for small frame Lambretta’s (Thanks Ash). Added theoretical chain length for 14×46.
4.10 Adds the facility to design and store custom gearboxes
4.01 Addressed an issue where column header wasn’t reading gearbox descriptions from bottom of list – Thanks to Steve (Trotsky) LCGB
3.40 Updated to include DRT Denis and Cyclone5 gearboxes
3.40 Pulled in favour of the older version 3.30 due to issues with conditional formatting on older versions of Excel (apologies this omits Cyclone5 data but will be fixed asap) – Thanks to Nigel Apsey and Sticky
3.41 Addresses an issue with the conditional formatting in 3.40 where the Visualiser window was blank on older versions of Excel. I’ve also added in data for the RPM range between 1000RPM and “Minimum”.
Can you please add a 12″ wheel option? Also 22 clutch gear option?
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is there any way of posting “not what to do”? with performance on hills and acceleration?
Hi Ben, yes I’ll put something together and post it in the coming weeks.
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Hey Tony, This is by far the best spreadsheet I’ve ever had to play with!
One question, I can’t seem to find the download for the Vespa gearbox. Is there another way I can get that from you or a direct link you can send me to the download? Thanks a million!
Hi Rob,
Thanks for the feedback – glad you like it!
I’ll have a look for the Vespa version tonight and will load it back on the website if I’ve still got it (can’t remember why I took it off)
Cheers, Tony
Hi Rob, I eventually found the Vespa version and have now uploaded it to the site on the download page. Cheers Tony
Nice. You are the man Tony! Thank you so much
is there away of downloading the older version as my old laptop does not want to play fair with the XLSX version
Hi, I’ll add the latest gearboxes to the old xls version and post it in a day or so. Cheers, Tony
Where will I download it from?
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Good bit of kit and regularly updated, top job 🙂
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https://www.scooterlab.uk/new-cp-close-ratio-lambretta-gearbox-news/
Ciao, ho aggiunto il cambio Casa al visualizzatore. Grazie per averci saputo. Tony
Brilliant, easier to make sense of then my scribbles on a scrap of paper. Thanks Mark Barker
Rad, thank you.
You’re welcome. Thank you
Like the new visualiser.. looking forward to a pro version……………..
Tony we need a 13 sprocket for Vega’s.. it only goes down to 14.. cheers Ash
Thanks Ash – I’ll get an update out for the 13T sprocket out in the next few days – cheers
Still no 13 t lol
Sorry Ash – Just updated and it’s on there now 🙂
Cheers Tony
i got xlsx and it wont work on my computer, but a fiend downloaded it and it does work on his, odd thing is he copied program of me,,,
Hi Kev, it sounds like you’ve got an older version of Excel. You may have more luck with the .xls version that can also be downloaded from this page. Cheers Tony
It would be useful to mantain the selection of a custom gearbox….
Hi Giankx, yes a better custom interface will be part of the future PRO version – thanks Tony
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Tony, your latest version looks superb. However, I don’t have the latest version of excel, so I can’t use it. I’ve tried to download a converter but failed miserably 🙂 Is there any chance you could save it in .xls format for me please?
Cheers,
Nigel
Hi Nigel, I had to go with XLSX for some of the additional functionality that xls won’t support in the new version. I’ll look at loading the new information into the old xls version.
All gearboxes are now included in both versions of the software and can be downloaded for free on the links above.