Re: Bike Mechanics Impart Their Wisdom On Vorb

Postby doofus on Tue 7/Mar/17 10:39pm

the old ones are 6 bolt.

but i can do rotor upgrades as a last step, buy one new one, swap the front to the back, perhaps...

i've been tending toward full swap over the course of the evening...

thanks,
Craig
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Re: Bike Mechanics Impart Their Wisdom On Vorb

Postby Conners on Tue 7/Mar/17 11:13pm

Piston size is effectively irrelevant in terms of comparing between models like you are here - piston size is a fixed ratio to master cylinder diameter that defines the leverage that you get by pulling the lever.

There will be a power difference beteeen the two types of brakes - but changing rotor size is a guaranteed percentage increase in power.

As for the max rotor size - do you have a thru axle (QR15) on that fork - or is it a standard quick release? I thought the max rotor size was based around a fear of being able to eject a standard quick release axle from the dropout under severe braking? Whether I would take this seriously or not I'm not sure.
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Re: Bike Mechanics Impart Their Wisdom On Vorb

Postby Velocipedestrian on Wed 8/Mar/17 7:20am

Make sure the new rotors aren't those resin pad only abominations.
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Re: Bike Mechanics Impart Their Wisdom On Vorb

Postby doofus on Wed 8/Mar/17 11:33am

OK a confession...

A facebook mate said "what are you cleaning your bike with.."

Noooooooooo!

I used... I'm ashamed to admit it...

car-wash-and-wax

I'll just go over here and be special...

new pads ordered, brake clean solvent, sandpaper

damnit!
CJK
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Re: Bike Mechanics Impart Their Wisdom On Vorb

Postby AgrAde on Wed 8/Mar/17 12:25pm

That'll do it.
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Re: Bike Mechanics Impart Their Wisdom On Vorb

Postby Dougal on Wed 8/Mar/17 3:45pm

doofus wrote:OK a confession...

A facebook mate said "what are you cleaning your bike with.."

Noooooooooo!

I used... I'm ashamed to admit it...

car-wash-and-wax

I'll just go over here and be special...

new pads ordered, brake clean solvent, sandpaper

damnit!
CJK


Wax would stop it for the first hill. But would burn off pretty quick. Either way. 180mm rotors on 29" wheels is going to be comparable to 160mm rotors on 26" wheels. Go straight to 203mm.

It's fork strength they use to rate rotor size. Many QR forks were designed to take 203mm rotors as the ejection force is actually lower than stopping as hard on a smaller rotor. I ran them myself for years. Until 20mm axles became available.
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Re: Bike Mechanics Impart Their Wisdom On Vorb

Postby Velocipedestrian on Wed 8/Mar/17 3:49pm

A Dougal question...

I assume the travel adjust in my Black Elite 100/120 coil is similar to the one in my long gone Flick Plus?
ie - doesn't like being ridden hard in short travel mode?
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Re: Bike Mechanics Impart Their Wisdom On Vorb

Postby Dougal on Wed 8/Mar/17 4:03pm

Velocipedestrian wrote:A Dougal question...

I assume the travel adjust in my Black Elite 100/120 coil is similar to the one in my long gone Flick Plus?
ie - doesn't like being ridden hard in short travel mode?


Yep. It's a lock-down which preloads the spring by 20mm. Not good for extended riding. Won't hurt it if the ears are fully engaged, but most will be worn and broken by now.

Same fork is on that FSR we just rebuilt for Mrs Dougal: http://www.shockcraft.co.nz/news/january-2017
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Re: Bike Mechanics Impart Their Wisdom On Vorb

Postby Velocipedestrian on Wed 8/Mar/17 4:43pm

Cheers.
Hasn't been ridden for ~10 years, fresh seals and oil etc.
I'm kinda looking forward to giving it a nudge.
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Re: Bike Mechanics Impart Their Wisdom On Vorb

Postby Dougal on Wed 8/Mar/17 4:48pm

Velocipedestrian wrote:Cheers.
Hasn't been ridden for ~10 years, fresh seals and oil etc.
I'm kinda looking forward to giving it a nudge.




They're still very good forks. Better performance than many $1500 forks today. Provided you've got a TPC damper and not the lockouts.

We've got almost everything for them still.
Dougal
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Re: Bike Mechanics Impart Their Wisdom On Vorb

Postby Velocipedestrian on Thu 9/Mar/17 9:59am

Yup, TPC. Not sure if the damper is functional, just pushing it on the floor shows no obvious difference from full open to closed.

Will try it IRL before considering a rebuild.
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Re: Bike Mechanics Impart Their Wisdom On Vorb

Postby Conners on Wed 22/Mar/17 11:34pm

Alright wise ones, whats the difference between these two:
http://www.chainreactioncycles.com/nz/e ... prod135891

http://www.chainreactioncycles.com/nz/e ... -prod67249

Other than price obviously...
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Re: Bike Mechanics Impart Their Wisdom On Vorb

Postby dwgknz on Wed 22/Mar/17 11:51pm

Got both. Probably done 2,000kms in 4 years on 530s and 1,000kms in 6 months on XTs.

1. No issues in terms of wear but early days,they need the odd drop of lube on the springs but that's it.

2. The XTs engage better definitely, you know when you're in, if that's ever an issue for you.

3. Only had problems with mud clogging on the XTs, don't recall it on the 530s.

4. Unnoticable difference in weight and stiffness. XTs maybe spin smoother but that's probably just my bias cause I spent more on them.

5. The spindle on the XTs looks way cooler and the profile is slimmer.

6. You stick the XTs on with an allen key instead of a pedal spanner.
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Re: Bike Mechanics Impart Their Wisdom On Vorb

Postby Dougal on Thu 23/Mar/17 12:47am

Just regarding pedals going on with an Allen key vs spanner. If the Allen key is overtightened (either install or removing a seized pedal) then it expands out to lock in place and requires the pedal axle be destroyed to remove it.

If you've got spanner flats then you're still able to remove and reuse a damaged pedal axle.
Dougal
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Re: Bike Mechanics Impart Their Wisdom On Vorb

Postby Velocipedestrian on Thu 23/Mar/17 7:35am

+1 for the 530s.
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