Additional to yesterday’s put up, 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 quick 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 might breathe out of the water:
[Via Sheldon Brown, where else?]
So it will 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 should you’re aware of Uniglide that’s not what it appears to be like like. The small cog is flat and you’ll sort of see the splines below it:
[Via here.]
That is the place I bought 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 house, so rather than the final cog and the lockring you have got the final two cogs from a Suntour winner Professional cassette (or freewheel, I don’t bear in mind which) threaded onto the tip 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 loosen up on a bicycle if I don’t know the way every part works, and the suspension elements on the AMP have been already inflicting me sufficient nervousness, so not realizing how the cassette was arrange on high of all that was preserving 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 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 motorbike had fallen over whereas parked in August, inflicting minor injury to Japan Submit 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 to be like just like the form of factor you’d be prone to discover should you have been scrolling by way 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 every part I learn about Japanese tradition from watching Nineteen Eighties movies like “Gung Ho,” so to be taught that self-flagellation, collective shaming, and ritual abuse are now 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 tender, winter bikes are now 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 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 principle 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 decreasing value of good trainers, implies that an increasing number of folks merely trip of their properties, in a digital world as a substitute, and in all chance get fitter and run a decrease threat of crashing and normal distress because of this.
This can be a disgrace, as a result of you will get an previous highway 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.
