Technical & Reference Section > Tech and Restoration
Browning Two Speed: like it or not it's smooth
Bigplinky:
Well what total hassle I've had getting this working :2gunsfiring_v1:
A small run down of troubles would be
Move crank (chainwheel) as far to the right as possible
Move Hub (freewheel) as far to the left as possible (to get the chainline between the front chain rings)
Shim the shifting barrel because this is an early version which didn't work correctly on most frames and was later countermeasured
Buy bloody stange size allen keys to tighten it up
Shim the seat post tube because clamp was too big
But got it working at last and I've got to say it is seamless under a powered shift. Whether you agree with 2 speed BMX or not (personelly I think BMX should be single speed) this was one hell or a piece of engineering / sideways thinking.
Available for Test rides at MK09 (wanted it ready for Creation but manflu stopped me :()
fouronethreeoh!:
Liking that apart from the jubilee clip for the cable stop.
I think you can get clamp on cable stops for old roadie bikes, suntour i think.
Always wondered how well browning system worked.
They were still producing up till early 2000s.
Very hard to compete against the might have shimano, especially with something that is a little unconventional.
billstup:
I must admit to being very suprised on how well the gears change on a 4x bike under a lot of torque :daumenhoch:
CD17:
I also think BMX should be single gear bikes, but would be very interested in seeing this working, looks pretty good :)
I just wonder why they had the twin cogs at the front & not the rear like MTB/Road Bikes :-\
Bigplinky:
4130, Didn't know they made them that late it would be interesting to see what mods they made to the early ones. The only down sides I can see are:
The shift isn't instant you have to wait upto one revolution of the crank before the shift
I think it would be very sensitive to mud (a lot of the workings are plastic so I think wear would also be an issue).
Not easy to swap between bikes quickly.
Bill, are you just talking about normal gear shifts on 4x bikes or do they have something fancy on them?
Chris, The secrets in the hinged outer chainring
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