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 Post subject: Re:
PostPosted: Sat May 30, 2020 11:04 am 
Gold Trader / MacRetro rider
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Joined: Thu May 06, 2010 10:05 pm
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Location: Scotland
1. That's progress for you! Way to boost bottom bracket sales!

2. That's progress for you! :lol: probably leverage, or excessive preload on the bearing.

3. I just get the cheapest Deore BB's and replace them as needed.

4. Personally I don't think it's worth the hassle, unless I was a pro racer.

If you want a chuckle at HT2 then visit #thanksshimano on Instagram... https://instagram.com/thanksshimano?igshid=185w1h8m40gw


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 Post subject: Re: Re:
PostPosted: Sat May 30, 2020 11:29 am 
King of the Skip Monkeys
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jimo746 wrote:
If you want a chuckle at HT2 then visit #thanksshimano on Instagram... https://instagram.com/thanksshimano?igshid=185w1h8m40gw


Blimey! :shock:


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 Post subject: Re: Re:
PostPosted: Sat May 30, 2020 12:40 pm 
MacRetro rider
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Joined: Tue Mar 29, 2011 6:06 pm
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legrandefromage wrote:
jimo746 wrote:
If you want a chuckle at HT2 then visit #thanksshimano on Instagram... https://instagram.com/thanksshimano?igshid=185w1h8m40gw


Blimey! :shock:


Maybe they should rename them Hollowwreck?
Guess they’ve found the limit of the strength to weight ratio. They always used to slag off carbon cranks as not fit for purpose.
Remind me never to buy a bike with an Ultegra chain set.

Better check my SLX cranks, seen reports of they doing similar and it’s not like I’m at racing weight.


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PostPosted: Sun May 31, 2020 6:22 am 
Retro Guru
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Joined: Sat Apr 18, 2020 6:24 pm
Posts: 296
Even the cheapest hollowtech II bottom bracket beats any square taper setup for me. I will admit that I haven't gone to external cranksets for the lifespan of the bottom brackets, but for the stiffness and ease of installation. I'd rather replace my BB more frequently than go back to square taper.


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PostPosted: Sun May 31, 2020 8:37 am 
Retro Guru
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Joined: Sat May 23, 2015 8:27 pm
Posts: 349
I think most BB standards since square taper have been designed purely for saving money in manufacturing and assembly.

My LBS told me they love the new standards because they're much easier to service, and they need servicing very regularly!


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 Post subject: Re:
PostPosted: Sun May 31, 2020 8:49 am 
Gold Trader / MacRetro rider
Gold Trader / MacRetro rider

Joined: Thu May 06, 2010 10:05 pm
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Location: Scotland
Re: stiffness, Track cranksets, which are arguably the toughest test of strength /stiffness are still predominantly square taper, although there are now external bearing options ftom Sram, Sugino and Rotor. Part of this is undoubtedly tradition, but also strength and reliability.


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PostPosted: Sun May 31, 2020 9:55 am 
retrobike rider
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Location: Yorkshire, England
Pionir wrote:
I think most BB standards since square taper have been designed purely for saving money in manufacturing and assembly.

My LBS told me they love the new standards because they're much easier to service, and they need servicing very regularly!

Same reason Aheadset became popular and took over.
there's no real headset benefit, but when manufacturers only need to make one steerer tube length for all forks (ok back then it was three sizes). and jobs a good one.
couple that with weight saving as you can use aluminium tubes with ease and you remove the cinch bolt parts.
So cheaper and then lighter.


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 Post subject: Re: Re:
PostPosted: Sun May 31, 2020 9:56 am 
retrobike rider
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jimo746 wrote:
Re: stiffness, Track cranksets, which are arguably the toughest test of strength /stiffness are still predominantly square taper, although there are now external bearing options ftom Sram, Sugino and Rotor. Part of this is undoubtedly tradition, but also strength and reliability.

do they have regulations that restrict part usage, or is that some other part of that sport I'm thinking of?


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PostPosted: Sun May 31, 2020 11:00 am 
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Joined: Tue Jun 19, 2007 3:34 pm
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Location: Launceston, Australia
I'm confused, I thought Hollowtech II was the cranks, the fact they are hollow crank arms, not anything to do with the bottom bracket? (other than they fit the axle that is attached to hollowtech crank arms...along with other 24mm cranks)


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PostPosted: Sun May 31, 2020 11:27 am 
retrobike rider
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Hollowtech is the cranks (as seen in the pictures). HollowtechII is the integration of the bottom bracket onto them.


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