I recently read in Real Classic that they felt Triumphs were better on Dunlops and Nortons better on Avons ...that said, I try to stay OEM as possible so ride on Avon Roadrunners except on the Tiger Trail where (Gott in Himmel !) Continental Twinduros give good performance and the front tyre of the T-Bird where a Speedmaster seems suited for the lighter cycle
i put tt100s on my bonneville.it has a T140 frame,,,,at first i felt like i was on tiptoe because the handling seemed lighter and quicker...but when you lean over it is very solid..the tiptoe part is because the contact patch straight up is 2 inches or so wide.
Originally posted by 649: aint nuthin wrong with TT100s...
I beg to disagree.
1. Depending on your weight (the lower the worse) and the sophistication (the cruder the worse) of the rear suspension, at high speeds (80+), a TT100 on the front, due to its small contact patch due to the trigonic cross-section, is a horrible front tyre - I owned a T160 from brand-new and its high-speed straight-line handling meant I never suffered from constipation. However, I appreciate that, these days, we're all probably a little(?) heavier, we've fitted something better than Girling rear shocks. and 80 for a T140 (except off a cliff) is probably academic ...
2. Avons are still made in GB while TT100's are made somewhere in the Far East.
Re: Tyres for T140E#124943 09/28/075:31 am09/28/075:31 am
hi, guys I just got an old 1980 Bonneville and am busily getting it set up to run regularly. I just put 3.25 x 19 K70's on the front and 4.00 x 18 K70's on the rear. I find that it has a nice vintage feel and look to it, nicely balanced. I am sure the Avon Roadriders will give better performance...but at least I can verify the sizes work *grin*
I had K70s ...the TT100s are noticeably better in every way...the K70s are too square a profile, and the bike immediately felt much much better...k70s are good for the vintage look and putting around but dont like pushing into a corner
1970 tr6r dryframe
Re: Tyres for T140E#124946 09/28/079:43 am09/28/079:43 am
Contemporary test in Classic Bike similarly criticised K70s fitted as OEM on the TR65 Thunderbird but Bike magazine test seemed to like 'em whilst Motorcycling tolerated them too albeit through gritted teeth, MCN tolerated them and MCW only warmed to them after initial scepticism once they'd worn...if you can afford the safest, fit 'em !
At the risk of being non traditional, I can suggest Dunlop 404's. I replaced the K81's on my 1978 Bonneville with the 404 tires, 100/90 19 front and 110/90 18 rear, and I have been pleased with the performance. I know that they work well in the wet too cause I've been rained on.
'78 T140E '79 XS650
Re: Tyres for T140E#124949 09/29/071:01 am09/29/071:01 am
your right there 649.....buts its always good to know what works and what doesnt......and like all the info here on this board it gives a good cross section to pick from....i sure learnt alot about "modern" bike tyres before ordering mine.....especially when u have to deal with "modern" bike shop staff!
"What are you rebelling against? What have you got?"
Have used the cheap Dunlop K81 TT100's for past 17 years on a street/touring t140E, never had any issues. If you were to ride at higher speeds i guess higher speed rated tyres would be worth considering. I get around 6000 to 7000 miles out of a rear tyre before it become near unsafe.
I'm not a complete idiot, some parts are missing.
Re: Tyres for T140E#124952 10/03/0711:49 am10/03/0711:49 am
649 Hi, I use the Bridgestone BT45's on my TR7 and it handles really well. On the front a 325/19 and the rear is a 120/90/18 and yes it does clear the stock chainguard by a couple of millimeters. I have always thought the 110/90/18 rear looks too skinny on the rear so I tried the slightly wider 120 and it works well. These tyres are well priced over here in Ozz and they wear well. I'm sure someone will give a long winded technical reason about why you can't fit these sizes to the T140 and why you MUST fit Avon tyres , but I have owned this bike for 31 years and these tyres work well. Hope this helps
Re: Tyres for T140E#124955 10/04/071:11 am10/04/071:11 am
Originally posted by Paul744: "Made in France", (maybe they were old stock)?
They were *very* old stock.
When Dunlop was a British-headquartered company, TT100's, certainly for European distribution, were made in France. However, when Dunlop became a Japan-headquartered company (and Fort Dunlop in Birmingham an upmarket shopping centre ) many years ago, all production was moved to various Far Eastern locations afaik.
Originally posted by Paul744: If I had a T140 that wouldn't cruise comfortably at 80mph I'd chuck it off a cliff