Shimano Forces Hammerhead to Remove All Di2 Related Functionality From Karoo

Re:Shimano Forces Hammerhead to Remove All Di2 Related Funct... by oriolid on Friday June 03, 2022 @02:33AM (#31604959)

Somewhere between 2000 to 2010 was a golden age when bicycle components were much more cross compatible than before or after. SRAM was almost all Shimano compatible (cog spacing, freehub splines, etc, IIRC the only difference was cable pull for shifting) and for 10 to 11 speed you could drop a Campagnolo wheel into Shimano/SRAM system or vice versa without any noticeable mismatch. And during that time there was basically one common bottom bracket shell standard.

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Re:Shimano Forces Hammerhead to Remove All Di2 Related Funct... by SyzygistSix on Friday June 03, 2022 @05:52AM (#31606263)

There are competing bottom bracket standards now? What a race to the bottom. Feeling even better about my 20 year old bicycle now.

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Re:Shimano Forces Hammerhead to Remove All Di2 Related Funct... by zeendo on Friday June 03, 2022 @10:05AM (#31608454)

  There are competing bottom bracket standards now?

Oh my sweet summer child.

Winter has finally come and the bottom bracket standards are everywhere.

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Re:Shimano Forces Hammerhead to Remove All Di2 Related Funct... by focusedone on Friday June 03, 2022 @11:30AM (#31609680)

I think this is all Cannondale's fault and I do resent them for it.

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Re:Shimano Forces Hammerhead to Remove All Di2 Related Funct... by alistairSH on Friday June 03, 2022 @07:13AM (#31606795)

Yep. A few…

Threaded external (Sram GXP)

BB30 (plus a few offset/asylum variants)

PF30 (Bb30 but bearing is in a plastic carrier instead of pressed directly into frame)

SRAM DUB

And most have 2-3 widths (road, mountain, e-bike/DH bike/fat bike)

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Re:Shimano Forces Hammerhead to Remove All Di2 Related Funct... by c0nsumer on Saturday June 04, 2022 @12:34AM (#31617013)

DUB is a crank spindle standard, and fits in lots of different bottom bracket shells. GXP is also a spindle standard that fits in different shells, most typically English threaded.

But to your main point, that there's a handful of modern standards, yep. There seems to be a good reason for each to exist, at least.

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Re:Shimano Forces Hammerhead to Remove All Di2 Related Funct... by alistairSH on Saturday June 04, 2022 @08:08AM (#31619398)

Which makes it worse. Not only does a consumer need to figure out the specs for the BB shell on the frame, but also the specs for the crank spindle.

On the plus side, at least Shimano has, so far, mostly stuck with a single spindle. Where SRAM has produced GXP, BB30, and Dub at overlapping points in time and within the same group of components.

And whoever invented BB30 (Cannondale?) needs a kick in the shin. I’ve never been happy with a BB30 frame - they’re all destined to squeak and creak and pop at some point. Maybe a good standard for a race bike that gets torn down frequently, but just terrible for a consumer bike.

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Re:Shimano Forces Hammerhead to Remove All Di2 Related Funct... by oriolid on Sunday June 05, 2022 @06:55AM (#31629807)

I think it's a part of the problem that consumers keep buying race bikes even if they're really not good for all around riding without support from a team mechanic. It wouldn't be difficult to make a reliable and affordable road bike with 95% of the performance of a race bike (disclaimer: I just made up the number) but selling it would be a challenge.

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Re:Shimano Forces Hammerhead to Remove All Di2 Related Funct... by Matthias247 on Friday June 03, 2022 @01:01PM (#31610870)

T47 (threaded) also joined the club more recently as a more reliable PF30 successor.

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