Allstate grabby front brakes
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Enthusiast
1960 Allstate VNA, 1962 VNB
Joined: 19 May 2014
Posts: 83
Location: Cambria, CA
Mon Oct 28, 2019 10:24 am quote
Hello all. Looking for some ideas on what to do to improve the brakes on the 1960 Allstate.

They are kind of weak when the lever is pulled. They do start to slow the scooter down but they just don't have a solid feel.

Then at a point near the end of the brake lever travel the front brake grabs real hard and/or locks up.

Is there anything that might cause this other than that they are old and that"s just how they work.

I'll try to get a picture posted this evening.
Enthusiast
1972 Vespa GTR, 1963 Lambretta LI 125
Joined: 05 Nov 2018
Posts: 83
Location: Halifax, England
Mon Oct 28, 2019 10:55 am quote
Make sure your cable is long enough. If it isn't as the suspension compresses it will itself pull on the cable and cause a severe brake. This happened to me.you need a good loop of cable outer at the end of the fork.
Hooked
P200E
Joined: 11 Apr 2010
Posts: 462
Location: The Town that dreaded Sundown.
Mon Oct 28, 2019 11:43 am quote
No first hand knowledge of this so hope someone will chim in who has.

https://www.vespatime.com/en/vespa-front-shock-absorbers-and-parts/560-crimaz-kit-anti-dive-shock-absorber-fork-smallframe-by-crimaz.html#


Edit: terrible spelling fixd

189EECCC-129C-420C-9593-CA6E6F3847E4.jpeg
Anti Dive bracket



Last edited by Ape on Mon Oct 28, 2019 4:35 pm; edited 1 time in total
Hooked
1955 Allstate 1958 lambretta 1965 Allstate 1968 sprint
Joined: 20 Jul 2017
Posts: 397
Location: Central california
Mon Oct 28, 2019 4:32 pm quote
Grabby brakes
Few things can cause a grabby brake....first one that comes to mind is a brake drum that is not perfectly round. Over time they become “unround”
Second thing that comes to mind is oil residue on the brake shoes. Any oil on the shoes will cause them to be grabby as they heat up.
Just so you know, the brakes are not very good on a good day. I have a 65 Allstate that did the same as your describing. I replaced the drum and shoes....made a big difference. Good thing the scooter is slow..LOL
Ossessionato
Joined: 22 Oct 2011
Posts: 4045
Location: Tega Cay, SC
Mon Oct 28, 2019 4:45 pm quote
if they are the original shoes, get rid of them. Get some Newfren shoes, clean up the drum and install. World of difference!
Enthusiast
1960 Allstate VNA, 1962 VNB
Joined: 19 May 2014
Posts: 83
Location: Cambria, CA
Mon Oct 28, 2019 6:57 pm quote
Sjanuary wrote:
Few things can cause a grabby brake....first one that comes to mind is a brake drum that is not perfectly round. Over time they become “unround”
Second thing that comes to mind is oil residue on the brake shoes. Any oil on the shoes will cause them to be grabby as they heat up.
Just so you know, the brakes are not very good on a good day. I have a 65 Allstate that did the same as your describing. I replaced the drum and shoes....made a big difference. Good thing the scooter is slow..LOL
Thanks for the info. New shoes are definitely in order. I’m interested in those Pinasco drums too.

Oh yeah it is slow but very fun to ride.
Enthusiast
1960 Allstate VNA, 1962 VNB
Joined: 19 May 2014
Posts: 83
Location: Cambria, CA
Mon Oct 28, 2019 7:00 pm quote
Tierney wrote:
if they are the original shoes, get rid of them. Get some Newfren shoes, clean up the drum and install. World of difference!
Thank you for your help.
I don’t know if they are original but they certainly look crapy. Definitely getting new ones.
Enthusiast
1960 Allstate VNA, 1962 VNB
Joined: 19 May 2014
Posts: 83
Location: Cambria, CA
Sun Nov 03, 2019 5:50 pm quote
I spent some time working on the brakes today.
I replaced the brake pads, drum and cable and housing.

Brakes feel stronger but it feels like there is still something wrong.

I can feel the brakes pulsing.
The braking is smooth and then grabs in one spot in its rotation.

It is almost like the drum isn’t round
(brand new drum) or is it possible the axel is bent. Would a bent axel cause this?
Addicted
GL, PK, PE200, Rusty Bluebadge
Joined: 24 Apr 2012
Posts: 702
Location: Deep in the heart of Texas
Sun Nov 03, 2019 6:05 pm quote
Did you take out the pivot pin to clean and grease everything that turns or have a part on it that turns?
Hooked
1955 Allstate 1958 lambretta 1965 Allstate 1968 sprint
Joined: 20 Jul 2017
Posts: 397
Location: Central california
Sun Nov 03, 2019 7:59 pm quote
Front brakes....
Yep my guess is the brand new drum is not round. Happens all the time. Friend of mine bought a Pinasco drum...it was round. Pretty nice piece. I bought a new drum for my 65 Allstate and it was not round. I put it in a lathe to verify that it was not round. I did give it a message on the lathe...it is better but not great...still a bit grabby. Good thing it is slow.
Enthusiast
1960 Allstate VNA, 1962 VNB
Joined: 19 May 2014
Posts: 83
Location: Cambria, CA
Mon Nov 04, 2019 7:48 pm quote
Sjanuary wrote:
Yep my guess is the brand new drum is not round. Happens all the time. Friend of mine bought a Pinasco drum...it was round. Pretty nice piece. I bought a new drum for my 65 Allstate and it was not round. I put it in a lathe to verify that it was not round. I did give it a message on the lathe...it is better but not great...still a bit grabby. Good thing it is slow.
I hate it when the new stuff I purchased doesn’t work right.

Although it does give me an excuse to purchase the Pinasco drum. It’s what I wanted anyway.
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