Suntour GT cage question.
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Suntour GT cage question.
At the local co-op I picked up a VGT Luxe Derailer or cheap and found this GT cage in the bin with the rest of the derailleurs. This cage looked exactly like the cage on a cyclone MKII GT, so is it same to assume I could swap this cage onto a standard cyclone and it will become a long cage version?
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At the local co-op I picked up a VGT Luxe Derailer or cheap and found this GT cage in the bin with the rest of the derailleurs. This cage looked exactly like the cage on a cyclone MKII GT, so is it same to assume I could swap this cage onto a standard cyclone and it will become a long cage version?
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I've never tried it with a MkII, but have done it with an early Cyclone (if my memory isn't playing tricks on me). steelbikeguy will know for sure.
To be honest, I wasn't sure I could tell you what the difference is, but a quick perusal of my various teardown photos produced a good shot of a Mk II cage:
the key (only?) difference is that the Mk II has a hex hole for the lower pivot shaft, while the 1st generation has the threaded round hole as shown in the OP's photo.
It is possible to put a 1st gen GT cage on a 1st gen short cage Cyclone body, which I've done. The short-cage Cyclones come up on ebay for a bit less money than the GT's, possibly because low gears are becoming more popular among the vintage crowd. Having a spare GT cage such as this one would be handy for such a conversion.
Steve in Peoria
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At least on the first generation GT, you'll need the long-cage bolt.
The short-cage version has the cage pivot bolt screw into the cage, whereas on the GT version the cage pivot bolt also does double-duty as the axle for the jockey pulley.
The short-cage version has the cage pivot bolt screw into the cage, whereas on the GT version the cage pivot bolt also does double-duty as the axle for the jockey pulley.
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Some shots of the short cage derailleur and pivot bolt....
and the GT version....
Steve in Peoria