Arm pump, fingers, and levers

GG121
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3/17/2022
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USA
I wanted to share some techniques I recently started employing that really helped me with arm pump. For reference, I raced for about 15 years, was a top B rider locally, and almost always got arm pump. Didn't ride for eight years, and have not gotten arm pump once in the six months since I started riding again.

The main change I made was focusing on only using my index fingers for the clutch and brake, and keeping these fingers extended out on the lever as much as possible. I've found that by keeping my index fingers isolated, the muscles in my forearms use less energy because they are separated into individual tasks. Hold your arm out in attack position, and flex your fingers; you should be able to clearly feel the different muscles on the bottom of your forearm that contract when you flex your index, middle, and ring fingers. Keeping my index fingers out on the levers allows those muscles to say relaxed until I need them to pull in the levers, while my other muscles are focused solely on maneuvering the handlebars, instead of being constantly contracted and extended from being involved in pulling levers.

Another change I made that helps a lot is I moved my levers way in on my bars so that I am pulling from basically the very end of the lever. It gives a much much easier pull, I can still modulate pressure with one finger, and it just makes using the clutch and brake easier. Jett Lawrence runs his levers like this, I am surprised it hasn't caught on more. And I haven't tested it out yet, but I would assume running my levers like this would result in less chance of bending a lever in a crash.

Just thought I'd share!
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Falcon
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Menifee, CA, USA
8/30/2022 7:32am
I agree on lots of that. Also, I run my levers a little higher than I used to. It really helps.
3
wrc777
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Greenwood, IN, USA
Fantasy
8/30/2022 12:59pm
Falcon wrote:
I agree on lots of that. Also, I run my levers a little higher than I used to. It really helps.
How high do you run them? I have been running the tops of the master cylinders level. I told a kid who was having issues to do the same thing. He was hesitant at first but then ran a hare scramble that way and loved it.

There is a downside to running the clutch way in. It is harder to get to the air valve and bleeder screw on an AER fork.
stone881
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Fruita, CO, USA
8/30/2022 1:03pm
I thought everyone did these things??
2
don'tknowwhy
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7/15/2015
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North Las Vegas, NV, USA
8/30/2022 10:33pm
Thanks for the tips. I've noticed there are times when I don't keep my index fingers on the levers......makes me wonder if those are the times I do get an pump. I will have to pay more attention to that.

The Shop

AMetts
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Location
Lincolnton, NC, USA
8/31/2022 7:07am
When you run your levers really far in it forces you to hold the bars at more of an angle similar to a door knob, makes you keep your elbows up and keeps your grip more relaxed as well. I know Jett rides like this and says he has never had arm pump. Im sure majority of other riders do this as well especially Sexton, Kenny, etc.
Falcon
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Location
Menifee, CA, USA
8/31/2022 7:10am
Falcon wrote:
I agree on lots of that. Also, I run my levers a little higher than I used to. It really helps.
wrc777 wrote:
How high do you run them? I have been running the tops of the master cylinders level. I told a kid who was having issues to...
How high do you run them? I have been running the tops of the master cylinders level. I told a kid who was having issues to do the same thing. He was hesitant at first but then ran a hare scramble that way and loved it.

There is a downside to running the clutch way in. It is harder to get to the air valve and bleeder screw on an AER fork.
I bet my setup is like yours. I don't pay attention to the reservoir top; just the lever itself. My levers are high, but not Travis Pastrana high.
wrc777
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Greenwood, IN, USA
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8/31/2022 7:49am
Falcon wrote:
I agree on lots of that. Also, I run my levers a little higher than I used to. It really helps.
wrc777 wrote:
How high do you run them? I have been running the tops of the master cylinders level. I told a kid who was having issues to...
How high do you run them? I have been running the tops of the master cylinders level. I told a kid who was having issues to do the same thing. He was hesitant at first but then ran a hare scramble that way and loved it.

There is a downside to running the clutch way in. It is harder to get to the air valve and bleeder screw on an AER fork.
Falcon wrote:
I bet my setup is like yours. I don't pay attention to the reservoir top; just the lever itself. My levers are high, but not Travis...
I bet my setup is like yours. I don't pay attention to the reservoir top; just the lever itself. My levers are high, but not Travis Pastrana high.
I started using the reservoir tops because that made it easier to set up consistently. I also thought maybe the bike designers did it that way on purpose.

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