View or Hide Header -->
Welcome,
Guest
. Please
login
or
register
.
1 Hour
1 Day
1 Week
1 Month
Forever
Login with username, password and session length
This topic
This board
A7 & A10 Engine
A7 1946-1950
Gearbox, Clutch, Primary
Frame
Lucas, Ignition, Charging, Electrical
Amal, Carburation
Entire forum
Google
Home
Help
Search
Contact
Login
Register
The BSA A7-A10 Forum
»
Technical (Descriptive Topic Titles - Stay on Topic)
»
Frame
»
Twin leading brake for a10
« previous
next »
Print
Pages: [
1
]
2
Go Down
Author
Topic: Twin leading brake for a10 (Read 2045 times)
Nomad54
🏴
Moving Up
Join Date: Dec 2023
Posts: 45
Karma: 1
Twin leading brake for a10
«
on:
08.01. 2024 23:51 »
Anyone know how to fit a twin leading front brake onto my 1963 a10 as I am looking at ways to improve the braking
Logged
BSA 1963 A10A
Stirlingshire
Scotland
Sav
Valued Contributor
Join Date: Jul 2011
Posts: 315
Karma: 6
VMCC Men of Kent and BSAOC member
Re: Twin leading brake for a10
«
Reply #1 on:
09.01. 2024 11:10 »
Not a great expert on TLS but I looked at it for a while. I finished up having my shoes relined with better quality brake material and that was quite an improvement from crap braking despite regularly centring the shoes.
I do know there are two sorts of Triumph faceplate and you may need to build up the slots for the fork leg. Others will advise and I am sure this topic will have been covered elsewhere on the forum.
Logged
1961 A10SR, spent a fortune at SRM
1961 A7SS, finally the right green
2011 1937 Empire Star, twin port, high pipes, 2023 off to pastures new.
2022 Gone to the dark side and bought a 1981 Honda Benly, electric leg for my old age! done 450 miles!
2023. 1972 Honda CL350 added. Another electric leg bike with a bit more oomf
White Cliffs Country
limeyrob
Resident Legend
Join Date: Nov 2023
Posts: 756
Karma: 4
Re: Twin leading brake for a10
«
Reply #2 on:
09.01. 2024 12:09 »
My A10 bitsa came with a '68 A65 TLS fitted. It looks to be that they used the front wheel, hub and mudguard from the A65. Its the 8" TLS and the hub is iron full width with a flange for the spokes on the brake side. I believe this means it is intended for the TLS brake. It is possible to fit the TLS into a standard full width hub but I believe the shoes run over the recesses for the spokes.
I was surprised to see that the peg on the fork slider fully engaged with the brake plate as this is a known problem. Unfortunately the brake retaining nut was only engaging by one turn and I found they had put 3/16 spacer on the spindle to move the hub over. I've taken that out and will now take the brake plate to a local welder and have the location slot built up with weld. The A65 hub is running on the A10 full width hub spindle as this fits the forks. When its all done I will have to check the wheel to see its central in the forks. Your fork centres should be 6 3/4".
Search youtube as there is a video of fitting a TLS in a BSA and the welding of the brake stop. It may take you a while to find a TLS brake, they seem to be sought after.
Logged
Slough 59 GF/SR
rocker21
A's Good Friend
Join Date: Jun 2011
Posts: 212
Karma: 2
Re: Twin leading brake for a10
«
Reply #3 on:
09.01. 2024 13:53 »
fitted one to my 1960 A7ss, a proprietary one from back in the day i think it a Tickle one, be careful in the wet it locked the front wheel up on a slightly damp road and had me off, full width iron hub
Logged
1960 A7SS, 1954 Ariel fieldmaster 500 twin, motoguzzi Monza 500, motoguzzi V7III special, new triumph speed 400
Ted_Flash
A's Good Friend
Join Date: Oct 2011
Posts: 117
Karma: 4
Re: Twin leading brake for a10
«
Reply #4 on:
09.01. 2024 16:04 »
Mine's got a set of B25 forks and wheel. OK it's only 7" not 8" but it can still make the tyre sqeal. Plus you get double damped forks. Plus they're cheaper than A10/A65 parts.
Logged
Ted Wilkinson, Ramsbottom, Lancashire
1950 Golden Flash
BSA500
Resident Legend
Join Date: Dec 2007
Posts: 925
Karma: 4
Tonbridge,Kent,UK
Re: Twin leading brake for a10
«
Reply #5 on:
12.01. 2024 12:56 »
Put one in my A7 must have been years ago as it cost me £25 complete. I had the torque peg on the fork extended. The original brake was bloody dangerous
Logged
1960 A7 (57 motor to SS spec)
limeyrob
Resident Legend
Join Date: Nov 2023
Posts: 756
Karma: 4
Re: Twin leading brake for a10
«
Reply #6 on:
12.01. 2024 13:46 »
Did you get the peg welded? Also how much longer was about right?
Logged
Slough 59 GF/SR
Joolstacho
Wise & Enlightened
Join Date: Jan 2010
Posts: 1160
Karma: 7
Re: Twin leading brake for a10
«
Reply #7 on:
13.01. 2024 00:18 »
From memory, it's much easier if you use the Fork Sliders from the BSA A65 / A50 that used that TLS brake.
When was that first (better) TLS brake... '68 - '70 ?
Previously I had tried the later TLS brake and found it useless, (I don't know how on earth the Rocket 3 stopped with those)!
Logged
muskrat
Global Moderator
Wise & Enlightened
Join Date: Jul 2009
Posts: 10954
Karma: 131
Lithgow NSW Oz
Re: Twin leading brake for a10
«
Reply #8 on:
13.01. 2024 05:48 »
G'day Jools.
Yes the conical (comical) brake was as "bad" as the 7" single leader. My 1st BSA was a 72 Lightening.
Cheers
Logged
'51 A7 plunger, '57 A7SS racer now a A10CR, '78 XT500, '83 CB1100F, 88 HD FXST, 2000 CBR929RR ex Honda Australia Superbike .
Australia
Muskys Plunger A7
Rex
Wise & Enlightened
Join Date: Apr 2017
Posts: 1671
Karma: 8
Re: Twin leading brake for a10
«
Reply #9 on:
13.01. 2024 09:11 »
Can't have been set up properly mate. Not quite as good as the earlier TLS (certainly not in looks anyway) but well set-up they can be excellent.
Logged
Joolstacho
Wise & Enlightened
Join Date: Jan 2010
Posts: 1160
Karma: 7
Re: Twin leading brake for a10
«
Reply #10 on:
13.01. 2024 09:24 »
Mate, I tried EVERYTHING!!!
Logged
limeyrob
Resident Legend
Join Date: Nov 2023
Posts: 756
Karma: 4
Re: Twin leading brake for a10
«
Reply #11 on:
13.01. 2024 12:45 »
I had a 71 Lighting and did well over 30,000 fast miles on it. I never had trouble with the brakes, but I see that they now do longer levers. My TLS on the A10 looks to be a '68 with the horizontal cable pull. Sliders are A10 (or very early A65?) - no damper rod but also no circlip? - and they have been chromed so I'll see if I can get the brake plate built up first.
I found the conical hub very sensitive to cable friction and route as both the inner and out move.
Logged
Slough 59 GF/SR
BSA500
Resident Legend
Join Date: Dec 2007
Posts: 925
Karma: 4
Tonbridge,Kent,UK
Re: Twin leading brake for a10
«
Reply #12 on:
15.01. 2024 13:22 »
Quote from: limeyrob on 12.01. 2024 13:46
Did you get the peg welded? Also how much longer was about right?
I just built it up with weld and filed it back until it was a good tight sliding fit. Did need a fair amount of weld. Arc weld was easier to build a larger amount than MIG
Logged
1960 A7 (57 motor to SS spec)
Joolstacho
Wise & Enlightened
Join Date: Jan 2010
Posts: 1160
Karma: 7
Re: Twin leading brake for a10
«
Reply #13 on:
15.01. 2024 22:19 »
Did you take any precautions to prevent distortion of the brakeplate whilst welding?
Logged
BSA500
Resident Legend
Join Date: Dec 2007
Posts: 925
Karma: 4
Tonbridge,Kent,UK
Re: Twin leading brake for a10
«
Reply #14 on:
16.01. 2024 13:07 »
I only welded the steel torque peg on the fork leg
Logged
1960 A7 (57 motor to SS spec)
Print
Pages: [
1
]
2
Go Up
« previous
next »
The BSA A7-A10 Forum
»
Technical (Descriptive Topic Titles - Stay on Topic)
»
Frame
»
Twin leading brake for a10