Britbike forum

Classic British SparesKlempf British PartsBaxter CycleBritBike Sponsor SteadfastCyclesThe Bonneville ShopLowbrow CustomsGirling Classic MotorcycleLucas Classic MotorcycleHepolite PistonsIndustrial tec supply

Upgrade Your membership! Premium Membership Gold Membership Vendor Membership

New Sponsor post
2023 Classic Triumph Motorcycle Calendars
by C.B.S - 09/22/22 5:28 pm
New FAQ post
Member Spotlight
Dave Comeau
Dave Comeau
Hamilton, Mass. USA
Posts: 1,747
Joined: August 2001
ShoutChat
Comment Guidelines: Do post respectful and insightful comments. Don't flame, hate, spam.
Top Posters(30 Days)
kevin 115
DavidP 60
Top Likes Received (30 Days)
kevin 30
reverb 29
Newest Members
Pacho, Abtinnmant150, Fritzer_108, Ratty, paul cheswick
12,261 Registered Users
Who's Online Now
6 members (mr.moto, Opo, Steve Erickson, gunner, Stuart Kirk, Xavier Devars), 13 guests, and 24 robots.
Key: Admin, Global Mod, Mod
Forum Statistics
Forums35
Topics76,325
Posts777,860
Members12,261
Most Online204
Jul 10th, 2022
Previous Thread
Next Thread
Print Thread
Page 1 of 2 1 2
Joined: May 2009
Posts: 13
Likes: 2
G
Greg H Offline OP
Britbike forum member
OP Offline
Britbike forum member
G
Joined: May 2009
Posts: 13
Likes: 2
Have a 67 Hornet and need to replace the badly cracked front tire. I can only seem to find 3.50-19's.

Thanks
G

BSA on eBay
Joined: Aug 2001
Posts: 7,732
Likes: 174
Britbike forum member
Offline
Britbike forum member
Joined: Aug 2001
Posts: 7,732
Likes: 174
Originally Posted by Greg H
Have a 67 Hornet and need to replace the badly cracked front tire. I can only seem to find 3.50-19's.

G


It would be great if they did, but unfortunately, they stopped making Dunlop K70 4.00x19 K70's long ago.


Jon W.


1957 6T Thunderbird 650
1968 T100R Daytona 500
1971 TR6R Tiger 650
1970 BSA A65F 650
1955 Tiger 100 - Project
1971 BSA A65 650 - Project
1972 Norton Commando 750 "Combat"


"Every time I listen to AC/DC, so do my neighbors"

Joined: May 2009
Posts: 13
Likes: 2
G
Greg H Offline OP
Britbike forum member
OP Offline
Britbike forum member
G
Joined: May 2009
Posts: 13
Likes: 2
Thanks. No choice but 3.50 if I want to stay with K70's or any other recommendations?

G.

Joined: Sep 2007
Posts: 1,609
Likes: 26
Britbike forum member
Offline
Britbike forum member
Joined: Sep 2007
Posts: 1,609
Likes: 26
I bought one about 8 months ago from American Motorcycle Tire. Reasonable prices and they have K70’s.


Who are the Brain Police?

B44 Victor
60 MGA
56 Chevy

Bob M.
Joined: Aug 2001
Posts: 355
Likes: 9
P
Britbike forum member
Offline
Britbike forum member
P
Joined: Aug 2001
Posts: 355
Likes: 9
Heidenau manufactures decent 4.00-19 tires although with a less coarse but more street pattern.

They seem to be available in the US as well.

HTH

Cheers!

Phil


Best regards
Phil
Celle/Germany
'62 A 65 Star (disassembled)
'69 A 65 Lightning
'71 A 65 Firebird
Joined: Oct 2007
Posts: 1,947
Likes: 64
I
Britbike forum member
Offline
Britbike forum member
I
Joined: Oct 2007
Posts: 1,947
Likes: 64
those "Mitas" tyres are pretty good they are cheap , look the part and handle very well , pretty sure they are made under license from Michelin in Chechsovakia or wat ever its called now

I have a 350 x 19 on rear of A10 but you can get a 400x 19 in Mitas


"There's the way it ought to be and there's the way it is" (Sgt Barnes)
Joined: Aug 2001
Posts: 7,732
Likes: 174
Britbike forum member
Offline
Britbike forum member
Joined: Aug 2001
Posts: 7,732
Likes: 174
Originally Posted by Greg H
Thanks. No choice but 3.50 if I want to stay with K70's or any other recommendations?

G.


Even the 3.50x19 K70 is a beefy-looking tire and would definitely suffice for your application in the absence of the 4.00x19. However, a good substitute 4.00x19 for our vintage bikes is a Duro brand HF-308 4.00x19 and they are readily available. They are a copy of the Pirelli MT-53 tires. Several vendors carry them in other sizes as well.


https://www.summitracing.com/parts/...tM9XHsyxqmlZ5IXADE7WEUU-KWhoCjxAQAvD_BwE

https://www.summitracing.com/parts/dot-10009?rrec=true

[Linked Image from img.jpcycles.com]


Jon W.


1957 6T Thunderbird 650
1968 T100R Daytona 500
1971 TR6R Tiger 650
1970 BSA A65F 650
1955 Tiger 100 - Project
1971 BSA A65 650 - Project
1972 Norton Commando 750 "Combat"


"Every time I listen to AC/DC, so do my neighbors"

2 members like this: Gary E, Greg H
Joined: Aug 2001
Posts: 238
Likes: 18
M
Britbike forum member
Offline
Britbike forum member
M
Joined: Aug 2001
Posts: 238
Likes: 18
the last K70s I bought (15 years ago) lasted about 10 months and started to crack. I called Dunglap and they said they are OK as long as the cords aren't showing. well... year old low mile tire that looks like 20/20k... "forget" that

Joined: Oct 2014
Posts: 233
Likes: 32
V
Britbike forum member
Offline
Britbike forum member
V
Joined: Oct 2014
Posts: 233
Likes: 32
I run a Duro HF308 3.50x19 on the rear end of my 1969 HD and it's a great tire.


1966 Triumph T120TT project
1967 Triumph TR6C
1972 Triumph TR6R
Joined: Sep 2007
Posts: 1,609
Likes: 26
Britbike forum member
Offline
Britbike forum member
Joined: Sep 2007
Posts: 1,609
Likes: 26
Anything but a 4.00x19 would be wrong on the front of a Hornet. Is your rim the correct WM 3-19? They are very difficult to find.

Last edited by Roadwarrior; 07/15/22 11:11 pm.

Who are the Brain Police?

B44 Victor
60 MGA
56 Chevy

Bob M.
Joined: Dec 2002
Posts: 3,427
Likes: 48
L
Britbike forum member
Offline
Britbike forum member
L
Joined: Dec 2002
Posts: 3,427
Likes: 48
I've been through this and the main thing I learned is if you wanna ride the bike, 350-19 feels much better.

1 member likes this: Allan G
Joined: May 2009
Posts: 13
Likes: 2
G
Greg H Offline OP
Britbike forum member
OP Offline
Britbike forum member
G
Joined: May 2009
Posts: 13
Likes: 2
Originally Posted by Roadwarrior
Anything but a 4.00x19 would be wrong on the front of a Hornet. Is your rim the correct WM 3-19? They are very difficult to find.


Yes it is a WM 3-19 and the Dunlop K70 tire says Made in England. Lord knows how old it is as I can't fine a dating code. Has badly cracked sidewalls.

G

Joined: May 2013
Posts: 8,822
Likes: 276
A
Britbike forum member
Offline
Britbike forum member
A
Joined: May 2013
Posts: 8,822
Likes: 276
Originally Posted by leon bee
I've been through this and the main thing I learned is if you wanna ride the bike, 350-19 feels much better.

+1 a 3.50:19 is a lot more rideable and still looks the part, though a 3.25 will handle better still.


Now let’s all have a beer beerchug

68’ A65 Lightning “clubman”
71’ A65 823 Thunderbolt (now rebuilt)
67’ D10 sportsman (undergoing restoration)
68’ D14 trials (undergoing transformation)

1 member likes this: Beach
Joined: Jul 2001
Posts: 2,736
Likes: 99
Ride safe today!
Offline
Ride safe today!
Joined: Jul 2001
Posts: 2,736
Likes: 99
Of you wish to go the heavy duty way go for Firestone ANS developed for the US Military

[Linked Image]

[Linked Image]

Last edited by Morgan aka admin; 07/16/22 10:35 am.

Morgan Johansson
BritBike.com.
Support Britbike forum & upgrade your membership
------------------------------
Join our British motorcycle forum on Facebook
1 member likes this: Gary E
Joined: Oct 2006
Posts: 4,775
Likes: 185
I
Britbike forum member
Offline
Britbike forum member
I
Joined: Oct 2006
Posts: 4,775
Likes: 185
I think 3.50-19 was standard on pre-unit swing-arm Triumphs as well.

Joined: Jan 2006
Posts: 3,113
Likes: 101
G
Britbike forum member
Offline
Britbike forum member
G
Joined: Jan 2006
Posts: 3,113
Likes: 101
Big differences between 4.00, 3.50, and 3.25.

A 3.50 on the WM3.19 rim might look a bit odd. 3.25 on a west coast model Hornet would look very out of place. A huge gap between the tire and the west coast model fender.

[Linked Image from i.postimg.cc]

West Coast Hornet
[Linked Image from i.postimg.cc]


1967 BSA Wasp
1967 BSA Hornet (West Coast Model)
1967 BSA Hornet (East Coast Model)
1968 BSA Firebird Scrambler
1968 BSA Spitfire Mark IV
1965 BSA Cyclone Competition Build
1965 BSA Spitfire Hornet Build
1 member likes this: Allan G
Joined: Jan 2006
Posts: 3,113
Likes: 101
G
Britbike forum member
Offline
Britbike forum member
G
Joined: Jan 2006
Posts: 3,113
Likes: 101


1967 BSA Wasp
1967 BSA Hornet (West Coast Model)
1967 BSA Hornet (East Coast Model)
1968 BSA Firebird Scrambler
1968 BSA Spitfire Mark IV
1965 BSA Cyclone Competition Build
1965 BSA Spitfire Hornet Build
Joined: May 2009
Posts: 13
Likes: 2
G
Greg H Offline OP
Britbike forum member
OP Offline
Britbike forum member
G
Joined: May 2009
Posts: 13
Likes: 2
Originally Posted by Gary E
How bad do you want an original?

https://www.ebay.com/itm/324018800939?ssPageName=STRK%3AMEBIDX%3AIT&_trksid=p2060353.m1438.l2649

https://www.ebay.com/itm/370862870521?ssPageName=STRK%3AMEBIDX%3AIT&_trksid=p2060353.m1438.l2649

Saw those but had to change my underwear after seeing the prices! Plus they don't say how old they are. According to online sources, the industry standard to replace is around 6 years even if they look good.

G

2 members like this: Gordon Gray, Allan G
Joined: Jan 2006
Posts: 3,113
Likes: 101
G
Britbike forum member
Offline
Britbike forum member
G
Joined: Jan 2006
Posts: 3,113
Likes: 101
Since the 4.00x19 K70 hasn't been made in a long time, all originals are old. Age doesn't really matter. It's the condition that matters. I've seen tires that were three times older than others that looked better. Storage and care/abuse is important.


1967 BSA Wasp
1967 BSA Hornet (West Coast Model)
1967 BSA Hornet (East Coast Model)
1968 BSA Firebird Scrambler
1968 BSA Spitfire Mark IV
1965 BSA Cyclone Competition Build
1965 BSA Spitfire Hornet Build
Joined: Dec 2002
Posts: 3,427
Likes: 48
L
Britbike forum member
Offline
Britbike forum member
L
Joined: Dec 2002
Posts: 3,427
Likes: 48
One of the nicest tires I've ever bought is that 400-19 ANS Firestone shown by Morgan. Tried it on a Hornet, took it back off quick. Tried it on an ironhead Sportster, even worse. Might be okay if you shaved half the rubber off. Several years I worried what to do with it, now it's on the rear of my B33.

Joined: Aug 2001
Posts: 7,732
Likes: 174
Britbike forum member
Offline
Britbike forum member
Joined: Aug 2001
Posts: 7,732
Likes: 174
Originally Posted by leon bee
One of the nicest tires I've ever bought is that 400-19 ANS Firestone shown by Morgan. Tried it on a Hornet, took it back off quick. Tried it on an ironhead Sportster, even worse. Might be okay if you shaved half the rubber off. Several years I worried what to do with it, now it's on the rear of my B33.


Hi Win,

Can you clarify the what and why as it relates to the ANS and the bikes you mentioned?


Jon W.


1957 6T Thunderbird 650
1968 T100R Daytona 500
1971 TR6R Tiger 650
1970 BSA A65F 650
1955 Tiger 100 - Project
1971 BSA A65 650 - Project
1972 Norton Commando 750 "Combat"


"Every time I listen to AC/DC, so do my neighbors"

Joined: Sep 2021
Posts: 286
Likes: 28
D
Britbike forum member
Offline
Britbike forum member
D
Joined: Sep 2021
Posts: 286
Likes: 28
I think duro makes a 4.00 19

I just ordered a hf314 4.00 18 for my b44. Totally reasonable price supposedly a k81 copy.


65 TR6R 68A65T 69 B44VS. 74 T150V 19 Chieftain
Joined: Jan 2006
Posts: 3,113
Likes: 101
G
Britbike forum member
Offline
Britbike forum member
G
Joined: Jan 2006
Posts: 3,113
Likes: 101
Originally Posted by leon bee
One of the nicest tires I've ever bought is that 400-19 ANS Firestone shown by Morgan. Tried it on a Hornet, took it back off quick. Tried it on an ironhead Sportster, even worse. Might be okay if you shaved half the rubber off. Several years I worried what to do with it, now it's on the rear of my B33.
I'd like to compare the tread depth of it to a Dunlop K70. Can you measure it for me?

The price of them are terrible compared to Dunlop K70's..


1967 BSA Wasp
1967 BSA Hornet (West Coast Model)
1967 BSA Hornet (East Coast Model)
1968 BSA Firebird Scrambler
1968 BSA Spitfire Mark IV
1965 BSA Cyclone Competition Build
1965 BSA Spitfire Hornet Build
Joined: Dec 2002
Posts: 3,427
Likes: 48
L
Britbike forum member
Offline
Britbike forum member
L
Joined: Dec 2002
Posts: 3,427
Likes: 48
Originally Posted by Jon W. Whitley
Originally Posted by leon bee
One of the nicest tires I've ever bought is that 400-19 ANS Firestone shown by Morgan. Tried it on a Hornet, took it back off quick. Tried it on an ironhead Sportster, even worse. Might be okay if you shaved half the rubber off. Several years I worried what to do with it, now it's on the rear of my B33.


Hi Win,

Can you clarify the what and why as it relates to the ANS and the bikes you mentioned?

It's tempting to just say, "It's too big", but I'm sure it wouldn't measure out all that much larger. I guess I'd say it's "heavy". I've ridden with original hard, old 400 K70s on the front.

Joined: Dec 2002
Posts: 3,427
Likes: 48
L
Britbike forum member
Offline
Britbike forum member
L
Joined: Dec 2002
Posts: 3,427
Likes: 48
Originally Posted by Gary E
Originally Posted by leon bee
One of the nicest tires I've ever bought is that 400-19 ANS Firestone shown by Morgan. Tried it on a Hornet, took it back off quick. Tried it on an ironhead Sportster, even worse. Might be okay if you shaved half the rubber off. Several years I worried what to do with it, now it's on the rear of my B33.
I'd like to compare the tread depth of it to a Dunlop K70. Can you measure it for me?

The price of them are terrible compared to Dunlop K70's..

Got a few miles on it now, but I'll stick something in there tomorrow.

Page 1 of 2 1 2

Moderated by  Allan G, Jon W. Whitley 

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






© 1996-2022 britbike.com
Powered by UBB.threads™ PHP Forum Software 7.7.5