Path: ...!eternal-september.org!feeder3.eternal-september.org!news.eternal-september.org!eternal-september.org!.POSTED!not-for-mail From: Zen Cycle Newsgroups: rec.bicycles.tech Subject: Re: wtf chain ring bolts Date: Thu, 6 Mar 2025 16:41:06 -0500 Organization: A noiseless patient Spider Lines: 48 Message-ID: References: MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit Injection-Date: Thu, 06 Mar 2025 22:41:07 +0100 (CET) Injection-Info: dont-email.me; posting-host="e3a311516feb02ba7522a563237848ea"; logging-data="3217271"; mail-complaints-to="abuse@eternal-september.org"; posting-account="U2FsdGVkX191BDzsch+i1IsHLDg6o71B0fg6jGiVrBk=" User-Agent: Mozilla Thunderbird Cancel-Lock: sha1:+e2XYn9/UFr8sGaZJDfr3KJMQkk= In-Reply-To: Content-Language: en-US Bytes: 2978 On 3/6/2025 4:34 PM, AMuzi wrote: > On 3/6/2025 2:26 PM, Jeff Liebermann wrote: >> On Thu, 06 Mar 2025 12:46:42 -0500, Catrike Ryder >> wrote: >> >>> On Thu, 06 Mar 2025 17:04:06 GMT, cyclintom >>> wrote: >>> >>>> On Wed Mar 5 16:08:18 2025 Catrike Ryder  wrote: >>>>> The chain ring guard came so I set about mounting the chain rings and >>>>> the guard. I ordered new chain ring bolts because I didn't want to >>>>> disassemble the old crank. The new inner bolts had hex deep down >>>>> inside and I figure that was fine until I could not find a allen >>>>> wrench that fit them. I tried both metric and standard and nothing >>>>> fits. The bolts on my old crank take a #5 allen. >>>>> >>>>> Does anyone know what's going on? >>>>> >>>>> I ordered another set of 16mm bolts and they look like they have a >>>>> larger hex that's not set deep inside it. >>>> >>>> >>>> >>>> >>>> Modern crank bolts can be made out of aluminum and instead of allen >>>> bolt may be Torx. Usually you can use the camera option on your >>>> smart phone to see close enough to identify this. >>> >>> Aluminum crank bolts are for weight weenies, and I did try a torx >>> driver on them. The bolts were mismanufactured. I tossed them. Not >>> worth trying to return them. >> >> They also may have been misordered.  There are Torx and Torx Plus >> heads.  Common Torx heads have a 15 degree drive angle, while Torx >> Plus has a zero degree drive angle. >> >> >> "The Evolution of Torx: From Torx to Torx Plus and Beyond" >>   (7:52) >> > > Standards are wonderful. We ought to have lots of them. > I'm living that life -- Add xx to reply