Point A- I take it you missed the bit about it being installed by a qualified mechanic.
Point B- These are engineering institutions ,they've not been designing ,building and repairing on an amateur level all this time and 20yrs faffing about with your own stuff doesnt really compare as any sort of experience when it comes down to it.
Point C- Dry faces
Not dirt be that a speck or a grain or whatever.
I'll take the word from someone who has done plenty of miles on bikes he maintains himself
On Sheldon Brown wrote:
I've learned to take his words with a grain of salt
Im not following this logic here
Point A : Seeing as it comes with fitting instructions, the manual is obviously made for whoever installed the BB. They mention grease where it's installed in the frame and put grease in the bolt threads, but not on the tapers.
again, the fitting instructions are for a qualified mechanic. I got a big pile of paperwork with my gas boiler including fitting and repairing instructions and an exploded diagram .According to your logic its expected ill do the installation for it.
I know it's not a crank fitting manual, but the BB is half of the combination. If they take care of the bolt threads, I'd really expect the tapers to be taken care of too if that were necessary.
Point B : Shimano and SRAM are engineering institutions too, and unlike the others they actually specialize in bike parts.
Now what is the name of the field that deals with bike parts
Hmm let me think
Oh Yes ENGINEERING
Point C : Feel free to clarify that, or at least make a structured sentence out of it. I can't do that, it's just a collection of words to me and I can't seem to figure out their meaning. Perhaps it's the language barrier, I don't know.
Or perhaps its sarcasm as the parting shot of a failed argument
I say failed but what i mean is is incomplete as 'failed' implies you had a chance in the first place
As for not following my logic in the Sheldon Brown thing, I do know that chain thing was a joke and think he knew what he was doing in most areas, but I am pretty sure he was wrong on this one.
As I said, from my experience it makes no difference. I've replaced plenty of BBs and fitted plenty of square taper cranks, and never had a reason to put grease on there.
Maybe sarcasm just doesn't work in writing after all.
Oh, i dunno, you seem to have the sarcasm down to a T
Im confident youve been replacing BB's and cranks and all other thinks bikey and are mostly competent in doing so,im not denying that.Im just saying that without a background where you at least have an understanding of the important principles involved it could well be youve been doing it incorrectly for 20yrs
Here is something i know for sure
An email from Shimano's chief design engineer plus one from Sram's and if it were possible one from Fred Dibnah himself would fail to change your way of thinking.
Here is something else i know-
Raging Bull wrote:
"I'd really expect"
The flaw to your argument.
Dry faces is the term to describe to meeting faces that havent first been prepared with a lubricant. Sure ,there are loads of instances where a lube isnt required but that doesnt apply to metal parts exposed to the elements.
i thought the square taper was to index the cranks relative to each other
Bad Mikee, BAD
Reminds me of a funny story
Picture the scene if you will, of a Saturday afternoon in early summer. The setting is a local bike shoppe filled with bike mechanics and assorted cyclists and other hanger ons drinking coffee and talking bikey stuff(could be confused with heaven except for the wages)
~The bell on the door goes and a customer enters pushing their pride and joy.
Being busy with the important duties of talking bikes and drinking coffee we pick the lowest common denominator ,namely the owners 17yrold son to take care of the customer.
From the front he announces(like we were listening) that the crank has loosened off and needs bolted back on.
being surrounded by bikes and mechanics all his life our young 'director' gets on with the job of refitting the crank. As he has been so very well trained he does of course grease the taper and refit the crank and bolted it on.I assume he used a torque wrench but as i didnt see i couldnt say for sure.I'd imagine though
Customer leaves and we get back to the important stuff.
5 mins later the customer returns saying they have a problem.
Our young mechanic had fitted both cranks on the same way. Easy to happen given his age and experience. His incompetence paled into all insignificance though when we discovered that the customer hadnt noticed for over 100 yrds
Did they think it normal for both knees to move in unison.
1976 Raleigh Chipper,1991 Muddy Fox Adventurer, 1992 Raleigh Diablo ,1992 Rudy Project, 1995 Cannondale M200 ,1997 Santa Cruz Tazmon ,1997 Specialized Stumpjumper ,1997 Specialized Rockhopper ,1997 Marin Quake 9.0,1998 Marin Pallisade trail ,1998 Raleigh Torus,1999 Orange Clockwork , 2005 Kona Hahanna , 2010 Orange Pure7
The Marvellous Mechanical Hope Collection