wrench size query
#1
Thread Starter
What??? Only 2 wheels?


Joined: Apr 2010
Posts: 13,501
Likes: 994
From: Boston-ish, MA
Bikes: 72 Peugeot UO-8, 82 Peugeot TH8, 87 Bianchi Brava, 76? Masi Grand Criterium, 74 Motobecane Champion Team, 86 & 77 Gazelle champion mondial, 81? Grandis, 82? Tommasini, 83 Peugeot PF10
wrench size query
Why oh why didn't they make all the small wrenches just a bit smaller? Like maybe exactly one millimeter smaller. 99 times out of a 100 when I need a wrench smaller than 10mm the first one grab is always too big. If they'd just made all the little ones 1mm smaller I wouldn't have that problem.
Whenever there is a 50/50 chance of something going wrong, 9 times out of 10 it will.
Whenever there is a 50/50 chance of something going wrong, 9 times out of 10 it will.
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Real cyclists use toe clips.
With great bikes comes great responsibility.
jimmuller
Real cyclists use toe clips.
With great bikes comes great responsibility.
jimmuller
#4
Thread Starter
What??? Only 2 wheels?


Joined: Apr 2010
Posts: 13,501
Likes: 994
From: Boston-ish, MA
Bikes: 72 Peugeot UO-8, 82 Peugeot TH8, 87 Bianchi Brava, 76? Masi Grand Criterium, 74 Motobecane Champion Team, 86 & 77 Gazelle champion mondial, 81? Grandis, 82? Tommasini, 83 Peugeot PF10
Of course. But when I pick it I guess wrong 100% of the time about whether to push or pull the little adjuster.
I have three big and one little adjustable wrenches. One is a real Crescent wrench. But I can't use it on my French bikes. For that I need a croissant wrench.
I have three big and one little adjustable wrenches. One is a real Crescent wrench. But I can't use it on my French bikes. For that I need a croissant wrench.
__________________
Real cyclists use toe clips.
With great bikes comes great responsibility.
jimmuller
Real cyclists use toe clips.
With great bikes comes great responsibility.
jimmuller
#5
#6
Know the feeling Jim. Just this past week, I was tempted to put different colored bands of electrical tape on my 8,9 and 10 mm wrenches. Then I thought "this is silly!" Then I picked up the wrong one again.
#8
Mud, Gore & Guts
Joined: Oct 2010
Posts: 497
Likes: 1
From: Bloomfield, NJ
Bikes: 2012 Van Dessel Gin & Trombones; 2011 Masi Speciale SSCX; '87 Peugeot Cannonball Express
I have all my wrenches color coded to make it easy. Now if only I could remember what each color meant?!?!
#10
Senior Member
Joined: Nov 2008
Posts: 1,959
Likes: 142
From: South Jersey
Bikes: Too many Bicycles to list
After 30+ years of wrenching for a living, it is pretty easy for me to tell the size of the bolt/nut just by looking at, but then I started to work on bicycles more and more and it is the only place I think I have ever used a 9mm wrench everything else metric is either 10 or 8mm in the real world so this one still gets me. 99.9 % of what I work on is metric. When it comes to the old British sized ( Whitworth SP?) nut & bolts all bets are off.
Glenn
Glenn
#11
Bolt size = the size wrench I can't find.
Scott
Scott
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#12
I usually get the right wrench on the third try... It varies evenly between:
Too big, too small, just right
and
Too small, too big, just right
This really ticks me off, especially when it ends up being a wrench that I just used.
Too big, too small, just right
and
Too small, too big, just right
This really ticks me off, especially when it ends up being a wrench that I just used.
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Slow Ride Cyclists of NEPA
People do not seem to realize that their opinion of the world is also a confession of character.
- Ralph Waldo Emerson
Slow Ride Cyclists of NEPA
People do not seem to realize that their opinion of the world is also a confession of character.
- Ralph Waldo Emerson
#13
Thread Starter
What??? Only 2 wheels?


Joined: Apr 2010
Posts: 13,501
Likes: 994
From: Boston-ish, MA
Bikes: 72 Peugeot UO-8, 82 Peugeot TH8, 87 Bianchi Brava, 76? Masi Grand Criterium, 74 Motobecane Champion Team, 86 & 77 Gazelle champion mondial, 81? Grandis, 82? Tommasini, 83 Peugeot PF10
It's right there in the toolbox. That's another truth I've learned from all that car wrenching.
__________________
Real cyclists use toe clips.
With great bikes comes great responsibility.
jimmuller
Real cyclists use toe clips.
With great bikes comes great responsibility.
jimmuller
#14
car guy, recovering


Joined: Nov 2008
Posts: 1,255
Likes: 9
From: Mount Vernon, NY
Bikes: Olympia Competizione & Special Piuma, Frejus track circa 1958, Dahon Helios, many others
Japanese cars have used 14mm heads on their 10mm bolts for decades. What used to be 17mm (10mm thread) and 19mm (12mm threads) on BMW, VW/Audi & Mercedes are now 16mm & 18mm. 6mm is rare on a car, since 4mm thread (7mm head) is about the smallest machine-thread fastener you'll find. some old instrument clusters used sheet metal threaded screws with 5.5mm heads.
Bored yet?
Bikes are way simpler, though it is getting hard to find allen wrench kits with the 7mm that you need for early alloy Cinelli stems.
Bored yet?
Bikes are way simpler, though it is getting hard to find allen wrench kits with the 7mm that you need for early alloy Cinelli stems.
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Michael Shiffer
EuroMeccanicany.com
Michael Shiffer
EuroMeccanicany.com
#15
Senior Member


Joined: Mar 2009
Posts: 1,574
Likes: 174
From: Kingwood, TX
Bikes: Road, Touring, BMX, Cruisers...
yeah, I never came across a 9mm needed on a bike. std, old, sizes, 8mm, 10mm, 14mm, 15mm, sometimes even a 17mm. All the others adorned the shop peg board.
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1984 Cannondale ST
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Pics
1984 Cannondale ST
1985 Cannondale SR300
1980 Gary Littlejohn Cruiser
1984 Trek 760
1981 Trek 710
Pics
#16
Cottered Crank
Joined: Aug 2010
Posts: 3,401
Likes: 15
From: Chicago
Bikes: 1954 Raleigh Sports 1974 Raleigh Competition 1969 Raleigh Twenty 1964 Raleigh LTD-3
Paging Goldielocks, this wrench is too big and that wrench is too small...
I've heard tell there are numbers stamped on wrenches -why don't they stamp them on the fasteners???
LOL
I've heard tell there are numbers stamped on wrenches -why don't they stamp them on the fasteners???
LOL
#17
Senior Member
Joined: Nov 2008
Posts: 1,959
Likes: 142
From: South Jersey
Bikes: Too many Bicycles to list
And yes I have the 5.5mm sockets for strange fasteners, that is another one I hate running in to because that's about the time my socket isn't where it is supposed to be.
Glenn
#18
I pretty much buy any tool I can find. I have all the wrench sets as well as all the taps and dies for metric, US, Whitworth, straight and taper pipe and a few odd gas fittings. I have the 5/16-32 that is on the outside of a schrader valve. I have many of them in left hand threads also. I don't have French and Italian BB taps though..
#19
Senior Member
Joined: Oct 2009
Posts: 1,001
Likes: 6
From: New England
Bikes: Trek 1.1
Me too! Wouldn't you think it is a design flaw? Couldn't there be a simple addition that could be sensed without having to turn it two ways first? I have been having that problem for years.
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