Vespa Allstate gear tube upgrade experiment
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Member
1959 Allstate
Joined: 29 Nov 2020
Posts: 10
Location: Los Angeles
Mon Nov 30, 2020 8:04 pm quote
Hey guys
So I got a 1959 Allstate with serious racing upgrades, including 4 gears instead of 3. The original shifter tube was not made for this setup.
Tried to get the SIP "short shifter" but it doesn't look like anything they have would work with the split headset.
I'll post some pictures..
First, the original tube.

20201113_142025.jpg

Member
1959 Allstate
Joined: 29 Nov 2020
Posts: 10
Location: Los Angeles
Mon Nov 30, 2020 8:08 pm quote
The original cable adjusters were 1/16th mild steel, brazed to the tube. I knocked them off using a Mapp gas torch.

20201116_113022.jpg

Member
1959 Allstate
Joined: 29 Nov 2020
Posts: 10
Location: Los Angeles
Mon Nov 30, 2020 8:16 pm quote
I have access to a CNC machine (waterjet). I made my own shifter CNC program and cut two 1/16 discs and one 1/8th spacer. Two 6mm screws hold them together.

20201116_113009.jpg

Member
1959 Allstate
Joined: 29 Nov 2020
Posts: 10
Location: Los Angeles
Mon Nov 30, 2020 8:26 pm quote
Shoulda brazed them to the tube, but I felt more comfortable welding. Not the best idea but it worked.
The "feel" through the gears is night and day. Shifting-through-neutral guesswork is no more.

20201116_161926.jpg

Molto Verboso
79 P200E, 62 Allstate, 2008 Stella
Joined: 11 Jan 2006
Posts: 1939
Location: Florence, OR
Mon Nov 30, 2020 9:38 pm quote
Very nice Ray! I've got a 62 Allstate that has the same split headset and three speed shifter setup. Moving the cable ends closer together instead of opposite each other makes shifting easier and smoother?

That looks like a fantastic upgrade I wouldn't mind doing to my stock setup!

Ossessionato
Joined: 26 Oct 2015
Posts: 2888

Mon Nov 30, 2020 10:01 pm quote
Re: Vespa Allstate gear tube upgrade experiment
Ray8 wrote:
Hey guys
So I got a 1959 Allstate with serious racing upgrades, including 4 gears instead of 3. The original shifter tube was not made for this setup.
Tried to get the SIP "short shifter" but it doesn't look like anything they have would work with the split headset.
I'll post some pictures..
First, the original tube.
I also looked into the SIP short shifter to install on my 61 Allstate, and yeah, it won't fit in the split headset. I currently have a P200 engine in my Allstate. You didn't happen to make a second short shifter did you?...because i'd really like to get something like that on my scooter.
Molto Verboso
62 VBB1T Round Tail W/ leaner sidecar
Joined: 26 Jan 2019
Posts: 1970
Location: california
Mon Nov 30, 2020 11:32 pm quote
Ray - this is awesome.
Those water jet parts would make great stocking stuffers for a few of the guys on here Im sure!
Perhaps you can be convinced to cut a handful of extras.

Wanna c the rest of the scoot now!
-CM
Hooked
1958 Allstate Super Cruisaire 2005 70cc Yamaha Vino
Joined: 23 Aug 2020
Posts: 134
Location: Philadelphia
Tue Dec 01, 2020 8:03 am quote
Id possibly be in that boat for wanting some of this action too!
Molto Verboso
2007 Stella 225
Joined: 02 Nov 2019
Posts: 1401
Location: Rochester, Minnesota
Tue Dec 01, 2020 8:15 am quote
Ray8 wrote:
I have access to a CNC machine (waterjet). I made my own shifter CNC program and cut two 1/16 discs and one 1/8th spacer. Two 6mm screws hold them together.
Great job! I miss projects like this, there fun. I use to work for a company that had a complete building devoted to R&D, 200,000 square feet. I took a few Solidworks and CNC courses at my local community college and I was allowed to work on projects like this in the evening. My favorites were a laser cutter and a wire edm.
Molto Verboso
2007 Stella 225
Joined: 02 Nov 2019
Posts: 1401
Location: Rochester, Minnesota
Tue Dec 01, 2020 8:26 am quote
Ray8 wrote:
Shoulda brazed them to the tube, but I felt more comfortable welding. Not the best idea but it worked.
The "feel" through the gears is night and day. Shifting-through-neutral guesswork is no more.
What was the diameter change?
Molto Verboso
2007 Stella 225
Joined: 02 Nov 2019
Posts: 1401
Location: Rochester, Minnesota
Tue Dec 01, 2020 8:33 am quote
qascooter wrote:
Very nice Ray! I've got a 62 Allstate that has the same split headset and three speed shifter setup. Moving the cable ends closer together instead of opposite each other makes shifting easier and smoother?

That looks like a fantastic upgrade I wouldn't mind doing to my stock setup!

I think he increased the diameter of the shifter cable holder in the middle area. It looks like the original may have been the two sides capturing the cable ends and the cables wrapped around the tube. He made new ends to capture the cable and a larger diameter center for the cables to ride on. The outer now turns more for the same movement of the bar.
Member
1959 Allstate
Joined: 29 Nov 2020
Posts: 10
Location: Los Angeles
Tue Dec 01, 2020 10:52 am quote
Christopher_55934 wrote:
Ray8 wrote:
Shoulda brazed them to the tube, but I felt more comfortable welding. Not the best idea but it worked.
The "feel" through the gears is night and day. Shifting-through-neutral guesswork is no more.
What was the diameter change?
I used the original diameter, around 42mm. The difference between the new disc and the old pulley is the diameter is constant in the new setup. I'm not an engineer, but that seems to be one reason why it feels so much better.
Member
1959 Allstate
Joined: 29 Nov 2020
Posts: 10
Location: Los Angeles
Wed Jan 06, 2021 8:13 pm quote
Quick update.
Been riding with this new setup for a month or so. If you have a 4th gear upgrade, IMO it's a must-do if you live in an urban area and want better confidence in traffic.
I emailed SIP and they sent me their option for the split headset. Just couldn't see how it could work from the pictures of those parts on a split headset tube.
I'll post an AutoCad file, in case anyone has access to someone who can cut these for them.
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