Best tyres for the karoo to coast

[Wyatt Earp]

Google.

 

The work on width and pressure has been done.

 

It was determined years back that lower pressure and more surface actually increases the overall speed.

[eddy]

At the OP.

Do you know if there is rain expected, I did this "roadie mtb event" in the pouring rain once, it is indeed an entire different event if it rains the whole day.

 

HaHa, I remember in 2004 having to take my new Epic back to some Troll in Midrand to have the pads and sommer disks replaced after the grinding they took on the downhills.

[Izak]

It was determined years back that lower pressure and more surface actually increases the overall speed.

Cool stuff thanks!!

 

Here's some more info supporting that http://en.wikipedia.org/wiki/Rolling_resistance

[Wyatt Earp]

HaHa, I remember in 2004 having to take my new Epic back to some Troll in Midrand to have the pads and sommer disks replaced after the grinding they took on the downhills.

 

That was indeed a rough year on that route :cursing:

[Mr Legs]

I did the1999 or 2000 on a set Continental Town & Country's, it was dry (it was actually very warm that day) and it was fine. A wet surface will be a different matter.

 

I do not quite understand Ms Cleats' reference to tubeless, is she saying no to tubeless?

[eddy]

 

 

Here's some more info supporting that http://en.wikipedia.org/wiki/Rolling_resistance

 

Wel gedaan, goeie en getroue slaaf !

 

See that was not so difficult and now you have the full answer rather than the pseudo science sprouted by hubbers.

 

If you look even further, you will find research done specifically on bicycle tyres covering differences in width, pressure and road surface that answer your original question precisely.

 

I don't need the info, so I couldn't be bothered to go to the trouble, but as you do have the interest, I highly recommend it.

 

 

 

[Mr Legs]

I would poep in my broek coming down Prince Alfreds Pass on slicks

 

I did it on slicks way back, if it is dry it is more than OK and I am not the worlds most skilled bike handler.

[arendoog]

Not necessarily true.

 

If you reduce the weight of your tyres from really heavy at 900g to some lightweight thin sidewall tyres weighing less than 600g your saving in time for the same amount of energy used will be about 4 minutes on a 5 hour time. And that's just weight, not rolling resistance impact.

The problem is the sidewall cut that will take 30 minutes to fix and then limp home at snails pace

[carbon29er]

The problem is the sidewall cut that will take 30 minutes to fix and then limp home at snails pace

Except this particular race is the Argus on gravel roads. Likelihood of tearing a sidewall given correct tyre pressure is about the same as me cracking a sub 4 and being rewarded in Knysna with a happy ending.

[Guest Smimby]

Spez renegade Front and Back for dry and Rocket ron Front for slightly damp, anything more rain and Sungaros front and back.....

[Scott2luvit]

the ones you have on your bike are the best, this is a dirt road race,

[Scott2luvit]

more important than tyres on the K2C is make sure you brake pads are up to scratch , you'll need them much more,

[Mailman7412]

Go with the tyres you have on your bike. Bit of loose rock and pebles in the first 6km. Then dirt road

[NINER_boy]

Regarding rolling resistance...

 

More to do with tyre pressure

Rolling_Resistance_Eng_illustrated.pdf

[Boerklong]

Yup Im keeping what I have on. Might be doing Hakervil and have a ride on the farm (Java territory) so it will be too much PT.

[Berry]

Looks like we in for some rain so I will keep the ones I know