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Members: 635 | Total Threads: 50,819 | Total Posts: 518,477 Currently Active Users: 958 (0 active members) Please welcome our newest member, Bunnyrides |
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10-02-2019, 07:39 PM | #1 |
Upsetting normal people..
Join Date: Mar 2007
Location: Portreath
Bike: S2r
Posts: 833
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Yoke bolts
Can someone recommend me a supplier for some? And maybe some pinch bolts as well.
While removing the forks today, the last one decided it didn't want to play ball resulting in squeaky bum time as I hammered an oversize star drive into the rounded hole while the bike with only 1 fork leg was perched on an Abba stand with an axle stand under the front cylinder... I had loosened them all off yesterday but today, nah...
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Power is nothing without control... I have neither !
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10-02-2019, 09:35 PM | #2 |
Registered User
Join Date: Dec 2010
Location: Oslo
Bike: S2r
Posts: 428
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Any reason why a dealer isn't good enough?
More bling? Probolt! |
11-02-2019, 02:09 PM | #3 |
Registered User
Join Date: Aug 2011
Location: Southampton
Bike: M1100evo
Posts: 2,465
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I'd avoid any generic Chinese eBay offerings - they may be fine for bodywork or low stress applications but you wouldn't want to rely on them in safety critical areas like yokes or engine casings.
You need to check that the tensile strength of your replacements is at least on a par with the originals. I don't know what the rating of the standard bolts is as there were no markings on the heads of mine but, for reference, Probolt say their caliper bolts are rated at 570MPa. I use these people https://www.kayfast.co.uk who also have an eBay store http://www.ebaystores.co.uk/Kays-Fasteners. They're British, cheap, you can buy individual screws and postage is very reasonable. Highly recommended. The zinc plated screws in the picture are probably closest to the standard finish and, with a high tensile strength of 1200+ Mpa, are well up to the job. The A2 stainless screws would also be fine - while it doesn't show the tensile strength on the website, they are stamped A2-70 and the 70 indicates 700MPa. I fitted the black high tensile bolts in my forks. They aren't coated or stainless but, with moly grease on the threads and heads dipped in ACF50, I've not had any corrosion problems. Many bolts have a code stamped on the head telling you the tensile strength - this chart will help you decipher them. |
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