Isen workshop: adventures in batch production (or not...)

Shoulda just used a sensible BB standard. 386evopressfit30BB92 next time right?

I think there is some sort of aptitude test for having one

Apparently they were designed specifically to appeal to a certain type of person using reasonably sophisticated targetting and marketing techniques.

Your mum owning one is probably proof of the inaccuracies of those techniques

#nevermetmymum

She needs it, to transport that really fragile dog of hers around.

That dog really is appalling. You know you're a shit dog when other dogs assume you're soft furnishings and don't bother interacting with you. Sad.

You jest, but the crit bike is going to be T47...

For those that don't know, we are referring to lola. She is a (just about) walking collection of genetic disorders, otherwise known as a puggle. Why humans insist on doing this to dogs I don't know.
😔

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walking collection of genetic disorders

Sounds like my village...

Ah, I've just treated myself to some T47 taps and BB shells. #allthegearandnoidea

I think T47 is great, all the large axle benefits with none of the stupid press fit issues. It'll never take off properly as it's no use in a modern carbon frame but Chris King and white industries have both said they'll keep supporting it ad infinitum so I'm happy to run with it.

Yep, that's why I like the concept. Allows you to run 30mm non-386EVO cranks in a threaded shell. WNTL?

WNTL?

Mostly that the big advantage of 68mm shells in the potential for low Q, and you can't exploit that as long as the rear end is as wide as it is, and getting wider. For 135/142mm wide dérailleur rear ends, 86mm is narrow enough at the BB shell for the chain run to the top sprocket to be the Q-limiting factor, and you can use 86mm×30mm BB axles in a 68mm BSC shell.

Mostly that the big advantage of 68mm shells in the potential for low Q

The big advantage for me in using 68mm shells is that all the cranks I've got will fit in 68mm shells, whereas only some of them will fit in 68mm BSC shells with BSA30/386EVO bottom brackets. The Specialized FACT cranks, for example, which I'm rather fond of.

For a standard road double chainline, I haven't found using 135mm rear hubs to be an issue. I appreciate it might be if you insist on running small/small combos on bikes with ultra-short chainstays, but since I do neither I've not found it an issue so far.

For a standard road double chainline, I haven't found using 135mm rear hubs to be an issue

It isn't as long as your Q is about 145mm for cranks of conventional thickness. Since 145mm Q is readily achieved with an 86mm BB spindle, the direction of travel for road bikes is naturally towards wide BB shells, as they provide a good foundation for all the other tubes running into that junction.

none of the stupid press fit issues

Every other industry in the world presses cartridge bearings into housings bored in the machinery framework. I'm not sure why bicycle makers have managed to turn such a well understood and widely used practice into such a clusterfuck.

#uallbintestered

#NFN

I'd say a combination of cack handedness and incorrect selection of materials. Boardman are a great example (I like boardmans btw). Take an ally frame, steel bearings and 'varied levels of experience' halfords 'technicians' and you have a recipe for disaster. Plus I don't think enough thought was put into the design around the BB area when people swap from threaded to press fit.

Of all the times this thread has been derailed, this is definitely the dullest.

Also add nodders using uncompromising race bikes as all weather beaters

Why are you insulting me !!! Haha good one @Howard

Agreed

If only we had some really terrible things to post to get it ‘back on track’

@coldharbour sorted my frame issue with #030 quickly and decisively too....

(Campag UT crankset fouling on drive side chainstay when installed)

My ISEN arrived in Melbourne this week and I’m suitably impressed. Love the massive shaped down tube, the paint job and the badge... can’t wait to get it built up.

Service and shipping was well organised, cheers ISEN Workshop crew!

Unfortunately I didn’t factor in the $350 customs charges oh well..

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Those Customs charges have even made your dog sad.