ST1100 offside caliper mounting bolt tool

Joined
Mar 25, 2018
Messages
7
Location
Scotland
Bike
1999 ST1100
Hey folks, anyone know what size of Torx key is required to take off the 2x offside caliper mounting bolts part 90107-MT3-003? I begrudge buying 20 different sizes of these as they don't appear to feature anywhere else obvious on the bike, unless someone says otherwise? Thanks. NW
 
Joined
Jul 28, 2007
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3,145
Location
finger lakes ny
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1999 ST1100
STOC #
7959
No Torx anywhere on the bike, mine at least. On the fiche that part number looks like simply the upper mounting bolt - 12mm.
 
OP
OP
Joined
Mar 25, 2018
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7
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Scotland
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1999 ST1100
Hmmm I'm not convinced, it looks like this. I measures approx 5.5mm from spline to spline.

IMG_20180518_130532.jpg
 
Joined
Aug 10, 2015
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Fort Worth, Texas
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91 ST1100/06 ST1300
Looks like a 'whatever I found to fit' bolt installed by someone. I encountered this a while back, torx substituted for what should have been a 10mm allen head bolt. Neither a metric nor US measure torx tool would fit. So, I drove to a small local auto parts shop and the clerk helped me find a tool. Turned out to be an oddball sized head courtesy of early 1980's GM, probably from the previous owner's bench top stash can. I was pleasantly surprised the shop still had one. If you can still drive the bike, you may want to try the same.
 
OP
OP
Joined
Mar 25, 2018
Messages
7
Location
Scotland
Bike
1999 ST1100
Ah glad to see I'm not the only one who's encountered this stroke of genius by a previous owner, I did think this was odd considering the nearside is furnished with Allen heads. Sounds like a plan Obf, two original bolts in the post and a drive to the shop to get these heads silly things removed. Thanks guys!
 

The Cheese

Looks like a rounded out hex key bolt to me. Whatever it is it will be a bear to get out. Good luck.
 

ST Gui

240Robert
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ST1300, 2010
The Cheese said:
Looks like a rounded out hex key bolt to me. Whatever it is it will be a bear to get out. Good luck.
I've heard mention (elsewhere!) that a Torx can be used to remove a hex/Allen 'if you're careful'. It looks like somebody wasn't.
 
OP
OP
Joined
Mar 25, 2018
Messages
7
Location
Scotland
Bike
1999 ST1100
DeanR, good question, in the UK the offside would be the right hand side of a vehicle and the nearside would be the left hand side as it's closest to the kerb...as we drive on the left.
 

Dale_I

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I believe that is a T-30 tip...

Enough that I'm going to walk out and see...

Edit....

I should have kept my mouth shut. There is a T-30, but not the bolt you are referring to. Sorry.
 
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