bar spins and shifting

Billy3197
Posts
16
Joined
11/20/2011
Location
Thiensville, WI US
Edited Date/Time 8/17/2014 1:46pm
I saw a few dirt jumpers with a cassette and rear derailleur, and it had both front and rear braking. What confused me is that the rider was able to barspin several times. I know a detangler would allow for barspins with both brakes installed but how did this bike pull it off with shifting too? Is it possible to route the shifter cable through the bikes stem?
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Big Bird
Posts
2136
Joined
2/1/2011
Location
Oceano, CA US
1/1/2012 9:02am
Those guys typically just run a longer cable, often taped to the brake hose and wound around the stem once or twice. When they barspin, the extra cable just comes unwound. You often see jumpers planning their runs and spinning their bars before going to put the right number of loops around their stems.
bturman
Posts
2102
Joined
8/1/2009
Location
Durango, CO US
1/2/2012 1:43am
Or you can run a shifter on your downtube like Semenuk does:

Big Bird
Posts
2136
Joined
2/1/2011
Location
Oceano, CA US
1/2/2012 8:42am
Nice one. I forgot about that. I used to run one on my seat clamp. I had a shifter with a damaged clamp which I cut off and drilled the bolt hole out. Then I filed a flat on the bolt head side of the seat clamp. Mount the shifter to the clamp with a longer bolt and tighten the seat. I used to do a fun trick combo in rhythm where I'd do a toboggan and reach down and shift gears on one jump, then do an ET on the next to engage the gear.

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