This is a two-speed hub with coaster brake – it has no cables… the unique selling point is that instead of selecting the gear manually, the hub changes gear based on your speed- automatically!
£68 rock solid two-speed hub with coaster brake
Shifts automatically, but absurdly early
After my dismal experience with the Sturmey Archer S2C, which failed dangerously, and having already gone through one terrible S5C hub before that, I decided to branch out in the coaster brake hub gear department, hence this SRAM Automatix review.
The SRAM Automatix offers two gears with a 137% step (that is, it will yield 100″/137″, or 52.5″/ 72″). The unique selling point is that instead of selecting the gear with a shifter, or even by back-pedalling as with the S2C, the hub changes gear based on your speed… automatically!
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This two-speed hub with coaster brake has no cables. It ships broken, and you need to get a part sent by Sturmey Archer, dismantle your new hub and rebuild the axle. It will then explode a few hundred miles later. Bad.
£70 two-speed hub with coaster brake
Fatally flawed, great if it works
The Sturmey Archer S2C is a hub full of golden promise within its very specialised niche – without any cables at all, you get a low/high gear and a brake, with good efficiency and reasonable weight.
If it wasn’t sold off the shelf with a serious mechanical fault requiring the end-user to rebuild it with a new part shipped out by Sturmey Archer (yes really), and didn’t fatally explode after a few hundred miles, it would indeed be great – but more on that later.
Update: my hub exploded, locking up in the frame while I was riding. Scroll to the bottom for conclusions.
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