Planet X brakes

Discuss light weight issues concerning road bikes & parts.
righty
Posts: 29
Joined: Sat Jan 01, 2011 8:54 pm

by righty

these brakes are excellent value for money even at twice the rrp price, they often come up on bikeradar and other forums for £50 or less, I got mine for £40 so even better :D
The springs are nice and strong and they look amazing, Friends who have Zero gravity have commented that these brakes have stronger springs and thus a better feel. Its a no brainer :D

Sam
Posts: 321
Joined: Fri Dec 29, 2006 5:07 pm
Location: Gothenburg, Sweden

by Sam

I have bought a set as well. Haven't riddem them yet due to winter here in Sweden.

But I do have a problem with the setup; it's difficult to get the rear brake to center after brakeing. It's off by far. One of the pads are virtually stuck on the rim and must be aligned by hand each time.

What to do?

by Weenie


principiamacb
Posts: 125
Joined: Wed Dec 30, 2009 4:49 pm

by principiamacb

I've recently moved from chorus skeleton s to these and I think they're great. I even kept the chorus brakes for a while incase I wanted to go back to.them cause I wasn't expecting a lot but thyve gone now.

I prefer the slightly more spongy feel. Makes it feel like there's more modulation. And there's still enough power. I think thats got a lot to.do with the pads.

I'm not sure about not being able to centre them. I've heard off this before but mine were perfect. I thought there was an adjuster to tweak them to the centre. I'm at work though so can't check.

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Ravenmore
Posts: 338
Joined: Tue Jan 10, 2006 5:21 pm
Location: Austin, TX

by Ravenmore

Sam wrote:I have bought a set as well. Haven't riddem them yet due to winter here in Sweden.

But I do have a problem with the setup; it's difficult to get the rear brake to center after brakeing. It's off by far. One of the pads are virtually stuck on the rim and must be aligned by hand each time.

What to do?


I've heard its related to the housing length. My front has the same issue. I'm planning on tweaking it sometime this week.

khaostik
Posts: 45
Joined: Sat Dec 11, 2010 6:25 pm

by khaostik

Hi, you cannot align them by hand.
You have to use a tool like this:
http://www.citrinus.com/produtos/1853_Chave-bocas---editada.jpg

Best regards,

Filipe Dias

principiamacb
Posts: 125
Joined: Wed Dec 30, 2009 4:49 pm

by principiamacb

Do u have to order that through planet x?

blantonator
Posts: 115
Joined: Sat Oct 23, 2010 8:36 pm

by blantonator

how do these compare to KCNC CB1s?

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Ravenmore
Posts: 338
Joined: Tue Jan 10, 2006 5:21 pm
Location: Austin, TX

by Ravenmore

khaostik wrote:Hi, you cannot align them by hand.
You have to use a tool like this:
http://www.citrinus.com/produtos/1853_Chave-bocas---editada.jpg

Best regards,

Filipe Dias


I remember I had to use a wrench with my Zero G's (these are vastly better brakes though). Are there any installation instructions out there? Didn't see any in the box.

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Rick
Posts: 2004
Joined: Sat Aug 29, 2009 4:30 pm

by Rick

It's off by far. One of the pads are virtually stuck on the rim and must be aligned by hand each time.

Are you using the alignment adjustment screw and still can't get it to stay centered ?

maybe you have it too far off to begin with. Loosen the mounting bolt, align the brake, and tighten the mounting bolt while holding brake in position. The alignment adjustment screw is then used for small adjustments.

I also have one of the Park offset brake adjustment wrenches that makes things easier:
Image

It is basically just a very thin metric wrench so you can grab the flats of the brake mounting boss. {mounting boss ? ....whatever it is.)

rruff
Shop Owner
Posts: 2194
Joined: Sun Jan 08, 2006 9:12 am
Location: Alto, NM

by rruff

Ravenmore wrote:I've heard its related to the housing length. My front has the same issue. I'm planning on tweaking it sometime this week.


Let us know if you get that sorted... probably just need to hold/adjust the main nut (on the brakes themselves) while you tighten the bolt. You can tweak the nut after it's tight. This has always been required on single pivot brakes.

Also, I'm curious about the "forged" model... if anyone can comment on the finish quality, and if the bolts eventually rust at all.

toxina
Posts: 6
Joined: Fri Mar 04, 2011 7:42 pm

by toxina

i want to buy the TRP R960TI, they cost rufelly more 65€ than the Planet-X ut they are 40g heavier, can someone coment this please, because i got very surprised with the price and weight.

thank you.

bikejunkie
Posts: 157
Joined: Tue Jun 22, 2010 8:43 pm
Location: UK

by bikejunkie

Just ordered some planet x brakes today, they should arrive tommorow, had a hard decision between them and kcnc cb1 and decided on the former one for its price and looks, still they are 100g lighter than my current anchors da 7800.

cant wait for the postie in the morning, I have already took the old one off the bike.

Sam
Posts: 321
Joined: Fri Dec 29, 2006 5:07 pm
Location: Gothenburg, Sweden

by Sam

Which is the "alignment adjustment screw"?

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Ravenmore
Posts: 338
Joined: Tue Jan 10, 2006 5:21 pm
Location: Austin, TX

by Ravenmore

rruff wrote:
Ravenmore wrote:I've heard its related to the housing length. My front has the same issue. I'm planning on tweaking it sometime this week.


Let us know if you get that sorted... probably just need to hold/adjust the main nut (on the brakes themselves) while you tighten the bolt. You can tweak the nut after it's tight. This has always been required on single pivot brakes.

Also, I'm curious about the "forged" model... if anyone can comment on the finish quality, and if the bolts eventually rust at all.


I figured it out. I just adjusted the bolt immediately behind the brake (not the one that goes through the fork) with a wrench. I remembered my Zero G's required the same adjustment occasionally). Really dig these brakes - light, cheap, and plenty of stopping power.

dynaserve
Posts: 272
Joined: Fri Jul 18, 2008 8:25 pm
Location: UK

by dynaserve

bikejunkie wrote:Just ordered some planet x brakes today, they should arrive tommorow, had a hard decision between them and kcnc cb1 and decided on the former one for its price and looks, still they are 100g lighter than my current anchors da 7800.

cant wait for the postie in the morning, I have already took the old one off the bike.


You made the right choice. The planet x are not perfect (cable slipping and centralisation issues), but stopping power way better than the kcnc. Stopping power nowhere near Shimano though (with like-for-like pads).

by Weenie


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