Britbike forum

Classic British SparesKlempf British PartsBaxter CycleThe Bonneville ShopLowbrow CustomsGirling Classic MotorcycleLucas Classic MotorcycleHepolite PistonsIndustrial tec supplyJob Cycle

Upgrade your membership to Premium Membership or Gold Membership or even Benefactor


New Sponsor post
10% Off Girling at The Bonneville Shop 2/3-2/9/23
by The Bonneville Shop - 02/03/23 6:14 pm
New FAQ post
News & Announcements
Premium members! 🌟
by Morgan aka admin - 02/04/23 2:40 pm
Buy BritBike staff a coffee ☕️ or pint 🍺
by Morgan aka admin - 01/15/23 9:29 am
Benefactor ✅
by Morgan aka admin - 01/08/23 8:38 pm
How to guides - Technical articles
ShoutChat
Comment Guidelines: Do post respectful and insightful comments. Don't flame, hate, spam.
Member Spotlight
Fisherman
Fisherman
Tennessee
Posts: 702
Joined: November 2005
Top Posters(30 Days)
Lannis 84
DavidP 83
Top Likes Received (30 Days)
Kev. 34
DavidP 27
Newest Members
Uneasy Rider, Mally, Daveed, 70Triumph, Knight57Corv
12,392 Registered Users
Forum Statistics
Forums35
Topics76,551
Posts784,409
Members12,392
Most Online204
Jul 10th, 2022
Random Gallery photo
Photo posting tutorial

Previous Thread
Next Thread
Print Thread
Joined: Jan 2004
Posts: 5,608
Likes: 224
Britbike forum member
OP Offline
Britbike forum member
Joined: Jan 2004
Posts: 5,608
Likes: 224
Looked at the newly acquired T160 parts. Someone asked about positioning of the kickstart lever, sitting angled back too far. I made a quick comparison of the two lickstart shafts and gears. From this picture you can see the notch for the cotter aligns differently, the T160 with the leading edge of the gear spline and the A75/T150 with the rear edge.
[Linked Image from live.staticflickr.com]
From the end view you can see the spline on the A75/T150 shaft points to the 15th whole tooth. The T160 spline points in between the 17th and 18th tooth.
[Linked Image from live.staticflickr.com]
The distance from the peak of the tooth to the centre of the shaft is 1.580" on the A75/T150 and 1.755" on the T160. A larger diameter gear on the T160 which means a smaller gear on the mainshaft (unless they moved the location of the kickstart, which I doubt).
The A75/T150 gear has 17 teeth, the T160 has 18 teeth.
The A75/T150 gear has 57-2169, the T160 has 57-4117 cast into it.

British motorcycles on eBay
Joined: Mar 2006
Posts: 5,543
Likes: 98
Britbike forum member
Offline
Britbike forum member
Joined: Mar 2006
Posts: 5,543
Likes: 98
Originally Posted by DMadigan
The distance from the peak of the tooth to the centre of the shaft is 1.580" on the A75/T150 and 1.755" on the T160. A larger diameter gear on the T160 which means a smaller gear on the mainshaft (unless they moved the location of the kickstart, which I doubt).
The A75/T150 gear has 17 teeth, the T160 has 18 teeth.
The A75/T150 gear has 57-2169, the T160 has 57-4117 cast into it.

I think you will find it's the difference between early and later kickstart ratchet parts, not between A75/T150 and T160 (because the later T150 also had the 57-4117 quadrant) and different kickstart pinion.

http://www.tioc.org/partsbookstriumph/pb-tri-T150-1969%202nd%20ed%2099-0866.pdf
Quadrant
T2169 (57-2169)
Pinion
T2170 (57-2170)

https://www.britishmotorcycleparts.co.nz/57-2170-kickstart-pinion-22t-bsa-triumph-triples
"57-2170 Kickstart Pinion 22T - BSA Triumph
Kickstart Pinion as fitted to 4 speed BSA A75 Rocket 3 models. Also, early Triumph T150 Trident models from 1968-69."


http://www.tioc.org/partsbookstriumph/pb-tri-T150-1973%2099-0972.pdf
Quadrant
T4117 (57-4117)
Pinion
T730 (57-0730)

https://www.britishmotorcycleparts....ion-triumph?gn=Search%20Results&gp=1
"57-0730 Kickstart Pinion - Triumph
Kickstart Pinion suitable for Triumph 650cc & 750cc twins and also late Triples."

Last edited by L.A.B.; 11/30/22 11:08 pm.
Joined: Jan 2004
Posts: 5,608
Likes: 224
Britbike forum member
OP Offline
Britbike forum member
Joined: Jan 2004
Posts: 5,608
Likes: 224
Thanks for the clarification. I put both shafts in the inner gearbox case. The leading edge of the cotter flats align pretty close although the early shaft flat was a little clockwise of the later, maybe 0.020". With the boss measuring 1.3" that comes to around 1-2 degrees if I sighted correctly down the shaft.

Joined: Oct 2022
Posts: 1
Novice poster
Offline
Novice poster
Joined: Oct 2022
Posts: 1
thanks for the info I was the OP on triples online about the kickstart lever on my t160 , I compared the angle of the cotter pin when on the stop with my rocket 3 and the t160 is about 10degrees different , the rocket 3 shaft looks shorter by about a 1/4 inch , can you confirm with your parts
thanks

Joined: Mar 2006
Posts: 5,543
Likes: 98
Britbike forum member
Offline
Britbike forum member
Joined: Mar 2006
Posts: 5,543
Likes: 98
Originally Posted by BobbyNZ
the rocket 3 shaft looks shorter by about a 1/4 inch , can you confirm with your parts
thanks

The short shaft is T24(A), 57-24, 57-0024 (BSA A75 etc.).
https://www.feked.com/triumph-kicks...twins-and-t150-models-circa-1946-74.html
(Not 4 1/4" as stated)


The long shaft is T4756, 57-4756.
https://www.feked.com/triumph-kickstart-shaft-t140-tr7-and-t150-models-circa-1974-onwards.html

https://www.classicbritishspares.com/products/triumph-kickstart-shafts

https://www.ebay.co.uk/itm/223625554362
"THIS IS A GENUINE L F HARRIS TRIUMPH KICKSTART AXLE PART NUMBER 57-0024, T 0024. 4" OVERALL LENGTH, AND FITS MODELS FROM 1938 TO 1975.
SUITABLE FOR 5T 6T T110 TR6 T120 TR7 T140.
LATER MODELS USE PART NUMBER 57-4756 WHICH IS 41/4" OVERALL, SO CHECK BEFORE ORDERING"

Joined: Oct 2008
Posts: 8,155
Likes: 354
Britbike forum member
Offline
Britbike forum member
Joined: Oct 2008
Posts: 8,155
Likes: 354
Yup, my '72 parts book calls for 57-0024, '74 book calls for 57-4756.
I don't know what they changed, both of mine are 5-speeds. But, I do remember that my GJ '74 had a T160 kick lever on it (until it broke.)


"Gosh, it's not a 1/4 20, must be metric."

72 T120V cafe project "Mr. Jim"
72 T150V "Wotan"


Moderated by  Tridentman 

Link Copied to Clipboard
British Cycle SupplyMorries PlaceKlempf British PartsBSA Unit SinglesPodtronicVintage MagazineBritBike SponsorBritish Tools & FastenersBritBike Sponsor






© 1996-2023 britbike.com
Powered by UBB.threads™ PHP Forum Software 7.7.5