Additional to yesterday’s submit, right here’s what’s happening 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 will be tempting to assume that the cassette is solely held on with a Uniglide small cog, and at first that’s the place my thoughts went too. However should you’re accustomed to Uniglide you recognize that’s not what it appears to be like like. The small cog is flat and you may form of see the splines below it:
[Via here.]
That is the place I acquired caught. So I requested Paul of Basic Cycle what was happening, 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 house, so rather than the final cog and the lockring you will 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 the whole lot 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 understand how the whole lot works, and the suspension parts on the AMP had been already inflicting me sufficient anxiousness, so not realizing how the cassette was arrange on prime of all that was retaining 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.
Transferring on, do you know that in Japan forcing somebody to trip 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 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 to be like just like the form of factor you’d be prone to discover should you had been scrolling via the Rivendell Instagram:
I have 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 discovered the whole lot 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 complete worldview.
Subsequent you’ll inform me the phrase “Gung Ho” isn’t even Japanese!
Lastly, talking of being smooth, winter bikes are not a factor as a result of no one 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 principle cause individuals not personal winter bikes is solely that they don’t want them anymore. The recognition of Zwift and different indoor coaching platforms, mixed with the lowering value of sensible trainers, implies that an increasing number of individuals merely trip of their houses, in a digital world as an alternative, and in all chance get fitter and run a decrease danger of crashing and basic distress because of this.
This can be a disgrace, as a result of you may get an outdated street bike for in regards to the value of a crabon handlebar and trip all of it winter lengthy. Take into account 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 after I walked by that one.
