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Motor Wires and Derailleur Protection

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Motor Wires and Derailleur Protection

Protect your motor wires going through the rear axel and if you have a derailleur with a derailleur guard. One of the best I have found is available at REI and is highly effective and provides a great deal more protection than the cheep thin guards sold online. Certainly worth the $20 i paid and if you have an REI near you it's available in most stores or at: REI.com

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Yes, unfortunately it is.  Even I know iridescent green and bright yellow is a no, no, LOL!  The nice thing is it has a U shaped opening for the axle box to fit the guard. If you have a derailleur it provides complete coverage.

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Not meaning anything personal by this, but I've seen that guard and frankly couldn't stand the sight of it.  Plus no other way to describe the design as anything but poor in my view.

The Fisher Fab House guard is vastly better.

http://www.fisherfabhouse.com/sondors.html

Below is the install video.  This sucker is solid steel and as you can see it suffers from none of the weaknesses associated with a hook-style designs (i.e. can't get caught on things).  If you have a 750w motor like I do, you can modify it with a dremel to cut a bit off one side of the bolt hole so it can slide on without having to be looped down the cable.

With all of this said, I am going to a hook style derailleur guard because the Fisher is such thick steel I can't implement a funky chain tensioner mod I am putting together.  I will be using a long version and connecting it to the rack boss -  facing back - to minimize the risk of hooking on stuff.  They are actually quite robust so long as you are not trying to take a hammer to the bike (already use one on another ebike).

 

Edited by MattRobertson

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Very cool and certainly better looking than the REI guard, I did not like the look either but hated the $5 guards on   Amazon.  Most bike shops don't carry much and don't like to help e-bike owner (purist I guess).

Thanks, think I'll order one?

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You'll like it... Its very low key and effective.  If I thought I could reliably thin out the metal around the dropout where it interfaces with the bolt, there's no way I would do without mine.

I have found the little $5 hook guards to be pretty good.  The key to getting them solid was to use 'large area' washers to help the bolt clamp down on them.  All I really want is for the guard to protect that cable end if the bike falls over while stationary.  If it gets laid down at speed - since I ride only on pavement - I am going to have much bigger problems I'm afraid.  Unless it does catch on something at which point I am screwed.  The one I have now on my Frankenbike is like yours: angled straight down.  Test fit the long one on my Sondors today.  From the rack boss bolt it will fit angled back very nicely, needing a couple washers behind it to stabilize the thing on the seatstay. Better than nothing.

The guy running Fisher told me he had found the motor cable could break off even if dumping the bike in soft dirt.  I got the impression he was using his Sondors as an off-roader so he had a lot of experience in banging them around.

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Thanks, yes damage to the motor cable is of real concern.  For a few bucks I am willing to try any viable option, the REI guard was available 15 minutes from my home.  Sever members have responded with several good ideas and I am sure I will swap out the current guard. 

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I think you should add another REI guard on the other side, paint the green, matching Sondors yellow, and tell everybody they're Training Wheels. ))

Edited by Tabletteer
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