Thread: Birdy thread
View Single Post
Old 06-23-22 | 05:29 AM
  #1774  
glye's Avatar
glye
Full Member
 
Joined: Jul 2018
Posts: 210
Likes: 24
From: Norway
Originally Posted by CEBEP
@glye thanks for your practical suggestion. It’s amazing how much you travel with your birdy!

Most of our ourchases have no practical meaning. I will be upgrading my rear rotor anyway as I’m changing the hub and I thought it would make sense to Ice Freeza rotor and thought it would be a good idea to have same properties in the front too.

Out curiosity how did you apply brakes during long descending? I assume using them in tern makes more sense to manage hearing, front and then rear and then front again?
Rjukan is close to where I live, easy to get to apart from the climbs. (This was with a different bike.)

Yeah, I'm also sometimes guilty of upgrades that have little or no practical benefit. I admit this

I'm no expert on that kind of extreme downhill. But I had heard the same as you - switch between front and back brakes, and that's what I did on that day.
The brake fade was scary but manageable. It was gradual. As soon as I noticed it happening, I stopped. Then I could smell the cooking brake pads and see the disk metal turned black-ish. So I just waited for it to cool, while moving the bike slightly a few times, so that the part of the disk inside the caliper would also be exposed to the outside air. When things looked normal again I continued carefully downwards, and did a few more stops to be on the safe side (and take pictures of the view). It's good to be aware that fading can happen, so that one recognises the signs quickly and stop while it's still possible.

Electric cars and some ebikes have a benefit here: They can dump a great deal of energy into charging their batteries, instead of braking.

Originally Posted by CEBEP
I think I’ll go with Shimano Deore XT and 10s 11-36 cassette which is the best choice I have locally. I’m not a racer so speed on 11 should properties be enough for me. In case it isn’t I can upgrade 52t chainring to a bigger diameter. What would be the biggest diameter I can go with without compromising the fold?
I don't know, maybe Jipe does? One limit is the chain retention device under the chainwheel. It seems to support 60t, as I read the Pacific Cycles info. Then the fold has it's limits, as you say. This needs the input of someone who has tried it, or some careful measurement and calculation.
glye is offline  
Reply