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S-A RS-RF3 Stuck in Low Gear

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S-A RS-RF3 Stuck in Low Gear

Old 08-07-21, 03:02 PM
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bajajoaquin
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S-A RS-RF3 Stuck in Low Gear

The title isnít quite right. Itís not stuck exactly, but I canít shift out of first gear using the shifter.

this is a RS-RF3 on my daughterís Early Rider 20Ē bike. It shifted fine a few days ago, but when we went for a ride today, she only had first gear.

The issue is that at full slack cable (3rd gear) the fulcrum lever pulley is rotated fully counter clockwise. This means that when you tighten the cable to go to first, it is already rotated
past that. Itís like the pulley is twisted too far.

Iíve managed to get my SA 8-speed going properly so this isnít my first IGH, but I feel like Iím missing something
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Old 08-07-21, 04:58 PM
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Dan Burkhart 
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Your answer may be within this document. under installation. https://www.sturmey-archer.com/files...EED%20HUBS.pdf
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Old 08-07-21, 05:08 PM
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I have that, thanks.
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Old 08-09-21, 03:30 PM
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The issue seems like it is an internal problem that may require replacement. In the instructions, you put the cable on by rotating the shifter thingie (fulcrum lever pulley) counter clockwise. This tensions the shifter against the cable which shifts from first to third by releasing tension.

This is the issue Iím in. The fulcrum lever pulley is already fully rotated counter clockwise so thereís nowhere for it to go.

The only thing I can see is that the protrusions of the shift actuator may not be in the correct position. Iíve moved them around to match the drawing, but itís not clear at all how to get the pulley set to follow the instructions.

Until I pulled the wheel off to ďfixĒ this, the wheel had never been off the bike since it was originally set up and operating properly. Im not sure if Iím missing something, or if something is broken internally or a third option that I donít see.

Any advice appreciated.
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Old 08-09-21, 07:56 PM
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Dan Burkhart 
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I have only dealt with one of these, and that was a while ago. If I remember right, the shift spring is in the fulcrum pulley, not in the hub, and should default to the third gear position.
It is possible the fulcrum pulley is jammed in the first gear position.
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Old 08-10-21, 08:30 AM
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Thanks. Iíll look at that.
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