Additional to yesterday’s publish, right here’s what’s occurring with that cassette:
To evaluate, 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 quick time the place Shimano hubs had each the outer threads portion for Uniglide and the internal threads for Hyperglide, like these bizarre prehistoric fish that might breathe out of the water:
[Via Sheldon Brown, where else?]
So it might be tempting to suppose that the cassette is just held on with a Uniglide small cog, and at first that’s the place my thoughts went too. However in the event you’re conversant in Uniglide you realize that’s not what it appears like. The small cog is flat and you’ll type of see the splines underneath it:
[Via here.]
That is the place I acquired caught. So I requested Paul of Basic Cycle what was occurring, and right here’s the reply:
That’s some part chicanery from the ’80’s.
So it’s a Shimano 7-speed cassette hub with most of a later era XT 8-speed cassette on there. The 8-speed cassette would naturally take up an excessive amount of house, so instead of the final cog and the lockring you could have the final two cogs from a Suntour winner Professional cassette (or freewheel, I don’t keep in mind which) threaded onto the top of the Shimano freehub physique holding all the pieces 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 calm down on a bicycle if I don’t know the way all the pieces works, and the suspension parts on the AMP have been already inflicting me sufficient anxiousness, so not understanding how the cassette was arrange on prime of all that was protecting me up at evening. 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 journey a bicycle is a violation of their human rights?
Simply ask the “Unnamed Postman,” who dropped his bike and was pressured 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 bike had fallen over whereas parked in August, inflicting minor harm to Japan Publish 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 think about as a human rights violation because it appears just like the form of factor you’d be more likely to discover in the event you have been scrolling by means of the Rivendell Instagram:
I have to say I’m doubly disillusioned. Not solely is my favourite spare time activity thought of so terrible that it’s a human rights violation proper up there with intercourse trafficking and torture, however like everybody else I realized all the pieces 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 now not acceptable there has utterly undermined my total worldview.
Subsequent you’ll inform me the phrase “Gung Ho” isn’t even Japanese!
Lastly, talking of being smooth, winter bikes are now 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 street 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 motive folks now 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 lowering value of good trainers, implies that an increasing number of folks merely journey of their properties, in a digital world as a substitute, and in all chance get fitter and run a decrease danger of crashing and common distress because of this.
It is a disgrace, as a result of you will get an previous street bike for in regards to the value of a crabon handlebar and journey all of it winter lengthy. Think about this Trek, for instance, which got here inventory with Biopace Wheel Know-how:™
I actually thought somebody had slipped me a hallucinogen and it had began to kick in once I walked by that one.
