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-   -   Which has better grip? (https://www.bikeforums.net/road-cycling/1094521-has-better-grip.html)

ruirui 01-12-17 01:13 AM

Which has better grip?
 
Forgive me if this has been asked before... Which has better grip?

Conti GP4K II or Michiln Pro4 Service Course?

rpenmanparker 01-12-17 08:23 AM

How would anyone know? Do you think folks have run valid experiments to find out? All you are going to get in answer to this question is anecdotal BS.

datlas 01-12-17 08:24 AM

And it almost is certainly going to depend on wet vs. dry, smooth vs gravelly, etc.

Too many variables to give a concise answer IMO.

10 Wheels 01-12-17 08:25 AM

What PSI do you run?

shoemakerpom 01-12-17 08:32 AM

Love my MICHELIN Pro4 Service Course in the rain..... Very predictable!

shoemakerpom 01-12-17 08:36 AM

Now they have the "Michelin Power All Season" just for that purpose............

JReade 01-12-17 11:55 AM

I can only say that I've noticed grip problems only on mtb tires that were too slick for the trail.

I'm interested in the situations that you're needing more grip... Leaving a light and laying down a patch of rubber? Leaning so far into turns that you keep falling?

PepeM 01-12-17 12:21 PM

Tubasaurs are bestest.

Sy Reene 01-12-17 12:45 PM

And to consider the pro 4 grip model
http://m.probikekit.com/bicycle-tyre...FdQINwodotgA3A

Carbonfiberboy 01-12-17 01:09 PM

Tour magazine used to run very good tests in both wet and dry. Anyone have a link to a sufficiently recent article?

noodle soup 01-12-17 02:35 PM


Originally Posted by rpenmanparker (Post 19308252)
How would anyone know? Do you think folks have run valid experiments to find out? All you are going to get in answer to this question is anecdotal BS.

Though this might be anecdotal "proof", but for years Michelin focused on grip, over tire wear & puncture resistance. This resulted in higher rolling resistance, and less mileage/durability than 4k2s tires, but likely better grip.

ruirui 01-13-17 12:13 AM

I run 100psi on my clinchers. I have the conti gp4k II on my BMC now and what I noticed was it will easily lose grip on turns or skid with slight braking.

I agree with Pro4 it is more predictable especially in the wet.

I have the Pro4 on my addict, guess I should just stick to what works...

Thanks for all the replies.

Bike Gremlin 01-13-17 12:23 AM


Originally Posted by JReade (Post 19308834)
I can only say that I've noticed grip problems only on mtb tires that were too slick for the trail.

I'm interested in the situations that you're needing more grip... Leaving a light and laying down a patch of rubber? Leaning so far into turns that you keep falling?

Giving you a benefit of a doubt that you're not trolling, just uninformed.

Hard braking is one situation that requires as good a grip as possible. Happens in traffic sometimes, even if paying attention and avoid even other people's mistakes before they get you into a problem.

Another situation is fast, sharp cornering.

When it's wet, this gets even more important, since there's more risk of going past the tyre's available grip.
When it's both wet and cold (even if not freezing), with a tyre that doesn't grip very well, one needn't even brake hard, or corner that hard and fast, to have a front wheel slip and go down.


Those are the reasons why tyre grip matters and makes a difference.

I settle for wider tyres that seem to offer decent grip even on a budget, but the narrower and lighter one goes with tyres, the more difference a high qualiy compound makes.

Dean V 01-13-17 03:45 AM


Originally Posted by ruirui (Post 19310185)
I run 100psi on my clinchers. I have the conti gp4k II on my BMC now and what I noticed was it will easily lose grip on turns or skid with slight braking.

I agree with Pro4 it is more predictable especially in the wet.

I have the Pro4 on my addict, guess I should just stick to what works...

Thanks for all the replies.

So you started a thread to ask the question to which you already knew the answer?
BTW I have had no issues with the grip of Conti's or Pro4.

ARPRINCE 01-13-17 08:00 AM


Originally Posted by Dean V (Post 19310277)
So you started a thread to ask the question to which you already knew the answer?
BTW I have had no issues with the grip of Conti's or Pro4.

He has an idea based on his experience and wanted to know what others think. Nothing wrong with that.


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