Additional to yesterday’s submit, right here’s what’s occurring with that cassette:
To evaluation, it’s a 7-speed hub, and an 8-speed Hyperglide cassette, but it lacks a lockring.
As a few of you identified, there was a short time the place Shimano hubs had each the outer threads portion for Uniglide and the interior threads for Hyperglide, like these bizarre prehistoric fish that would breathe out of the water:
[Via Sheldon Brown, where else?]
So it might be tempting to assume that the cassette is just held on with a Uniglide small cog, and at first that’s the place my thoughts went too. However if you happen to’re accustomed to Uniglide you realize that’s not what it appears like. The small cog is flat and you’ll form of see the splines underneath it:
[Via here.]
That is the place I acquired caught. So I requested Paul of Traditional Cycle what was occurring, and right here’s the reply:
That’s some element chicanery from the ’80’s.
So it’s a Shimano 7-speed cassette hub with most of a later technology XT 8-speed cassette on there. The 8-speed cassette would naturally take up an excessive amount of area, so instead of the final cog and the lockring you’ve the final two cogs from a Suntour winner Professional cassette (or freewheel, I don’t bear in mind which) threaded onto the top of the Shimano freehub physique holding every part in place!
Right here’s a Suntour Winner Professional freewheel:
[Via eBay, the world’s greatest photo repository for vintage cycling components]
And right here’s how the cogs affix to the freewheel, by way of (the place else?) Sheldon Brown:
I can’t chill out on a bicycle if I don’t understand how every part works, and the suspension parts on the AMP had been already inflicting me sufficient anxiousness, so not figuring out how the cassette was arrange on prime of all that was protecting me up at night time. So now that I perceive it I can lastly sleep once more. The Suntour thumbies shifting a Shimano derailleur throughout a hybrid Solar-mano cassette additionally additional endears me to the bike.
Shifting on, do you know that in Japan forcing somebody to experience a bicycle is a violation of their human rights?
Simply ask the “Unnamed Postman,” who dropped his motorbike and was compelled to finish his rounds on a bicycle in oppressive August warmth:
In an interview with nationwide broadcaster NHK, the unnamed postman recounted how his work motorbike had fallen over whereas parked in August, inflicting minor harm to Japan Put up property. Following the incident, his supervisor ordered him to finish the identical supply route on a bicycle.
Right here’s a photograph of a Japanese postal employee delivering mail by bicycle, which is hard to consider as a human rights violation because it appears just like the form of factor you’d be prone to discover if you happen to had been scrolling by the Rivendell Instagram:
I need to say I’m doubly disillusioned. Not solely is my favourite spare time activity thought-about so terrible that it’s a human rights violation proper up there with intercourse trafficking and torture, however like everybody else I realized every part I learn about Japanese tradition from watching Nineteen Eighties movies like “Gung Ho,” so to study that self-flagellation, collective shaming, and ritual abuse are not acceptable there has utterly undermined my whole worldview.
Subsequent you’ll inform me the phrase “Gung Ho” isn’t even Japanese!
Lastly, talking of being gentle, winter bikes are not a factor as a result of no person rides bikes in winter anymore:
Principally, the individuals who say you want disc brakes in your highway bike due to the superior foul-weather efficiency are the exact same ones who retreat to the coach on the first signal of any type of precipitation:
Maybe the primary cause individuals not personal winter bikes is just that they don’t want them anymore. The recognition of Zwift and different indoor coaching platforms, mixed with the decreasing worth of good trainers, signifies that increasingly individuals merely experience of their properties, in a digital world as an alternative, and in all probability get fitter and run a decrease threat of crashing and basic distress because of this.
This can be a disgrace, as a result of you will get an previous highway bike for concerning the worth of a crabon handlebar and experience all of it winter lengthy. Take into account this Trek, for instance, which got here inventory with Biopace Wheel Expertise:™
I actually thought somebody had slipped me a hallucinogen and it had began to kick in once I walked by that one.
