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This is what's wrong with The Industry™

canadmos

Cake Tease
May 29, 2011
21,947
21,467
Canaderp

Lelandjt

adorbs
Apr 4, 2008
2,638
998
Breckenridge, CO/Lahaina,HI
Every YT frame I've seen is PF90, the smaller diameter press fit size popularized by Shimano and also used by Scott. Their DH bike should be whatever the wide version of that is, like PF105 or something, same as my Gambler.
 

Jm_

sled dog's bollocks
Jan 14, 2002
20,122
10,677
AK
Every YT frame I've seen is PF90, the smaller diameter press fit size popularized by Shimano and also used by Scott. Their DH bike should be whatever the wide version of that is, like PF105 or something, same as my Gambler.
what in the actual fuck?
 

pizza diavola

Monkey
Dec 3, 2013
297
539
They aren't local, but if you message the folks at https://www.fullcycle.ca/ (use the instant message thing or email - they are quick...), I'm sure they can get you some. Free shipping too.

Though yeah, not local at all for you.

This place also has them. Free shipping over $99 and from Alberta: https://www.ridleys.com/product/hayes-dominion-a4-disc-brake-pads-408719-1.htm
@Da Peach , you probably know, but your A4s should come with two sets of pads, one pair sintered and one pair semi metallic. I burned through the semi metallic very quickly, but the sintered have lasted quite long. When I order tires from the Germans, I add on some pads but they look to be out of stock at the moment. Last time I bought several of the Galpher Pro's based on the recommendation in one of the brake threads here.
That Ridleys price is not that much more than international though.
 

Lelandjt

adorbs
Apr 4, 2008
2,638
998
Breckenridge, CO/Lahaina,HI
what in the actual fuck?
Actually, I like this BB standard because of its width, which allows the frame and swingarm pivot to be wider. The only thing better is BB386 because it's the same width and bigger diameter (bigger bearings) but somehow that never caught on. The DH versions are wider than the trail versions but since no one uses the middle sleeve it doesn't matter.
 

Happymtb.fr

Turbo Monkey
Feb 9, 2016
2,069
1,439
SWE
I like PF92 too but I only have 24mm spindles on my bikes. I wouldn't want a 30mm spindle in there because it would only allow space for tiny bearings...
I think that the major part of the hatred for pressfit is linked to 30mm spindles, the rest being bad tolerance of the BB shell.
 

Gary

my pronouns are hag/gis
Aug 27, 2002
8,509
6,420
UK
Shimano PF92 (and the road derivative) have tiny poorly sealed bearings housed in plastic cups. They just don't last long in any application. Their only saving grace being how cheap they are to manufacture and sell
A larger shell for 24mm axle cranksets makes a lot more sense. Preferably with better sealing for MTB

One of the biggest *real* issues with pressfit over threaded seems to be poor shell alignment/tolerances during manufacture.
Hambini has tons of videos on YouTube slating various manufacturers BB shells. Mainly road frames but I wouldn't imagine the problem to be any less common in the MTB world.
 

Lelandjt

adorbs
Apr 4, 2008
2,638
998
Breckenridge, CO/Lahaina,HI
One of the biggest *real* issues with pressfit over threaded seems to be poor shell alignment/tolerances during manufacture.
Hambini has tons of videos on YouTube slating various manufacturers BB shells. Mainly road frames but I wouldn't imagine the problem to be any less common in the MTB world.
Exactly. Don't hate the game, hate the player. All my pressfit bikes have been made correctly and worked fine. It's not the standard that's "bad", it's the manufacturers who can't make it right. It's not like BSA is immune to bad manufacturing either. Poorly faced shells is the most common issue with them.
 

Gary

my pronouns are hag/gis
Aug 27, 2002
8,509
6,420
UK
TBF back when cartridge square taper BBs were the norm. BSA BB shells simply didn't need facing for bearing longevity.
And those things still last 20x the life of any modern external/pressfit solutions we have today.
So. Yeah. You can fire a shit load of that hate towards the designers behind modern BB standards (if anyone on this thread still has any left to).
 

Jm_

sled dog's bollocks
Jan 14, 2002
20,122
10,677
AK
Exactly. Don't hate the game, hate the player. All my pressfit bikes have been made correctly and worked fine. It's not the standard that's "bad", it's the manufacturers who can't make it right. It's not like BSA is immune to bad manufacturing either. Poorly faced shells is the most common issue with them.
Well, the BB92 standard is bad, offers nothing over BB30, except smaller bearings and forced the 28.99 "standard".

Lets not forget with BB30 and 30mm spindles you could by off-the-shelf industrial (good) bearings.
 

Gary

my pronouns are hag/gis
Aug 27, 2002
8,509
6,420
UK
when axles increased in diameter shells should have too

it's taken 20 years but T47 is probably what we should have had as soon as 24/30mm axles were even thought of
 

jonKranked

Detective Dookie
Nov 10, 2005
88,769
26,984
media blackout
Exactly. Don't hate the game, hate the player. All my pressfit bikes have been made correctly and worked fine. It's not the standard that's "bad", it's the manufacturers who can't make it right. It's not like BSA is immune to bad manufacturing either. Poorly faced shells is the most common issue with them.
in all fairness, there were enough manufacturer's that couldn't do PFBBs right that led to a general disdain for the standard
 

Lelandjt

adorbs
Apr 4, 2008
2,638
998
Breckenridge, CO/Lahaina,HI
Well, the BB92 standard is bad, offers nothing over BB30, except smaller bearings and forced the 28.99 "standard".

Lets not forget with BB30 and 30mm spindles you could by off-the-shelf industrial (good) bearings.
BB30 (PF30) is too narrow. It was designed for road bikes. The wider version of it, BB386, is the best standard and what I specced on the bikes I designed, all rigid. The one issue I could maybe see with it is the large diameter could limit pivot placement. AND for the pressfit haters there's an identical but threaded version of that standard (T47). What's not to love? I wish we could hear from industry insiders who are more inside than me on why PF92 is so popular and T47/BB386 so rare.
 

jonKranked

Detective Dookie
Nov 10, 2005
88,769
26,984
media blackout
BB30 (PF30) is too narrow. It was designed for road bikes. The wider version of it, BB386, is the best standard and what I specced on the bikes I designed, all rigid. The one issue I could maybe see with it is the large diameter could limit pivot placement. AND for the pressfit haters there's an identical but threaded version of that standard (T47). What's not to love?
i'm surprised T47 hasn't become more popular
 

6thElement

Schrodinger's Immigrant
Jul 29, 2008
17,214
14,679
i'm surprised T47 hasn't become more popular
I think I read something the other day that said more mainstream companies are going to start using it. But they've already effed it up by making derivative versions...

edit:
 
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canadmos

Cake Tease
May 29, 2011
21,947
21,467
Canaderp
Whats wrong with the industry:

10 years ago: we were complaining about bottom brackets
current: we are complaining about bottom brackets
10 years from now: we will still be complaining about bottom brackets
 

Lelandjt

adorbs
Apr 4, 2008
2,638
998
Breckenridge, CO/Lahaina,HI
in all fairness, there were enough manufacturer's that couldn't do PFBBs right that led to a general disdain for the standard
According to Hambini it's not that hard to do, especially at the prices being charged for frames. The problem was companies inflating their profit margin by skimping on production quality and not even bothering to do checks. So hate the players.
 

Lelandjt

adorbs
Apr 4, 2008
2,638
998
Breckenridge, CO/Lahaina,HI
Whats wrong with the industry:

10 years ago: we were complaining about bottom brackets
current: we are complaining about bottom brackets
10 years from now: we will still be complaining about bottom brackets
Makes me wonder how many "creaking steerer tubes" are really headtubes that are as out of spec as some of the PF BB shells.