29er braking performance

[Eldron]

  On 9/4/2014 at 9:00 AM, dirtypot said:

A 29er wheel travels further in distance with each rotation of the wheel than a 26er.

Therefore a bigger rotor is needed to achieve the same braking force at the same speed.

Simple really.

 

I hope you have sarcasm font on cos your science font is broken.

[rouxtjie]

  On 9/4/2014 at 9:08 AM, Eldron said:

I hope you have sarcasm font on cos your science font is broken.

kekekekeke

[rouxtjie]

  On 9/4/2014 at 9:00 AM, dirtypot said:

A 29er wheel travels further in distance with each rotation of the wheel than a 26er.

Therefore a bigger rotor is needed to achieve the same braking force at the same speed.

Simple really.

Does 1kg feathers weigh less than 1kg lead?

Edited September 4, 2014 by rouxtjie

[Wannabe]

  On 9/4/2014 at 9:11 AM, rouxtjie said:

Does 1kg feathers weigh less than 1kg lead?

 

No, but they fall slower.

[NINER_boy]

http://www.bikeradar.com/mtb/gear/article/trail-tech-disc-brake-rotor-size-37050/

[Eldron]

  On 9/4/2014 at 9:11 AM, rouxtjie said:

Does 1kg feathers weigh less than 1kg lead?

 

Actually he might be onto something - with one small correction...

 

At the same speed the 29er wheel will be turning slower so 29ers need SMALLER brake rotors!

[rouxtjie]

  On 9/4/2014 at 9:13 AM, Wannabe said:

No, but they fall slower.

you gots me.

[DJ84]

Your physics is flawed.

It is force that needs to be slowed down.

 

All things equal, all things will be equal no matter the wheel size.

velocity does not get changed by wheel size.

 

So please show me how this applies in a practical manner.

[Eldron]

  On 9/4/2014 at 9:14 AM, NINER_boy said:

http://www.bikeradar...tor-size-37050/

 

Wheel size and rotor diameter are related. In general, a 180mm front and 160mm rear rotor will provide you with ample braking power for a 29er hardtail. But there are several other factors to consider as well.

 

The chaps at bikeradar need to go back to university!

[jcza]

Friday topic - come back tomorrow please

[rouxtjie]

  On 9/4/2014 at 9:19 AM, Eldron said:

Wheel size and rotor diameter are related. In general, a 180mm front and 160mm rear rotor will provide you with ample braking power for a 29er hardtail. But there are several other factors to consider as well.

 

The chaps at bikeradar need to go back to university!

what about these...jis they must brake like a baws

 

http://www.chainreactioncycles.com/us/en/dirty-dog-skull-rotor/rp-prod25147

[MarcBurger]

/resisting the urge to go all sciencey...

 

180 rotors, check pads/change pad type (lightly sand down with fine paper if they are full of junk), bleed as last resort.

SLX brakes should be able to stop you with plenty strength left.

[Eldron]

  On 9/4/2014 at 9:23 AM, rouxtjie said:

what about these...jis they must brake like a baws

 

http://www.chainreac...or/rp-prod25147

 

Damn! Those are pretty sweet!

 

I wonder if uber cool beats ICE TEC?

[GhostSixFour]

  On 9/4/2014 at 9:32 AM, Eldron said:

Damn! Those are pretty sweet!

 

I wonder if uber cool beats ICE TEC?

 

Uber cool means it stays cooler than ICE TEC, so of course it beats it in performance. Simple science really.

[RockCoach]

The answer is momentum. Takes more energy to accelerate thus more energy to stop.

 

However, that is not going to affect the OPs problem with brakes not biting.

[rouxtjie]

  On 9/4/2014 at 9:36 AM, GhostSixFour said:

Uber cool means it stays cooler than ICE TEC, so of course it beats it in performance. Simple science really.

And what is cooler than skulls on your rotors....dragons pappie

 

http://www.amazon.com/DirtyDog-Dragon-rotor-6-bolt-160mm/dp/B001CK2O3S

Edited September 4, 2014 by rouxtjie