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Albert Werth

The Belt Came Off the Boiler

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The Chain on my SONDORS X has fallen off twice in 1,400 plus miles, hardly worth mentioning, but I decided to track down a fix. The first incident was about a month after receiving the bike and beginning to consistently   riding a shared use bike path. I hit a rather large pot hole adjacent to the path, after an altercation with a motorist that violated my space in a crosswalk. As my rear tire fell into and bounded out of the hole, hard enough, that my chain jumped off the Chainring. I put the chain back on the Chainring and went on my way. The second time, last week, was during a downshift to first gear, as I reached my turnaround point. This time it was caused by poor alignment between my 56T Chainring and first gear. I fine tuned the Derailleur, adjusting the stops and alignment. Understanding the first occurrence was caused by the chain jumping vertically off the Chainring and the second with poor alignment, I wanted to attempt to cure both with a single change. I found a Chain Guide that I thought I could make work, or modify slightly, to make if fit. 

 

1575597271_9-BikeSeatTubeClampChainGuide.jpg.38f8096954e30141b7182eea548b8221.jpg  678326110_1-BikeSeatTubeClampChainGuide.jpg.7d24eb1d3b58f3ddffac206ed63d9e0f.jpg  1028540329_2-BikeSeatTubeClampChainGuide.jpg.a969027b71b2b91d81a733d48758aa03.jpg  1705261943_3-BikeSeatTubeClampChainGuide.jpg.75f6dac4f1607e8669936a66210d071a.jpg

 

1819391929_6-BikeSeatTubeClampChainGuide.jpg.ac8757f687862ee92b8509c318c500ef.jpg  2053677277_5-BikeSeatTubeClampChainGuide.jpg.0f00dab21a84bf94983b997533c1aa73.jpg  2060596660_8-BikeSeatTubeClampChainGuide.jpg.d5d60bf5e64c346eef8057f505f1e0c9.jpg  1362654653_7-BikeSeatTubeClampChainGuide.thumb.jpg.70e410ebb53ed92676096fc6beb1ed34.jpg

 

Off the shelf worked with the addition of a longer screw and elimination of a bracket. Here is a link to the Guide:

https://www.amazon.com/gp/product/B075N1HP86/ref=ppx_yo_dt_b_asin_title_o05_s00?ie=UTF8&psc=1

I will post an update, as to the durability and reliability of my fix. What I didn't show, was the small window I cut in the Battery Case, for clearance of the Guide's Clamp Hinge.

 

 

4 - Bike Seat Tube Clamp Chain Guide.jpg

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On ‎10‎/‎9‎/‎2019 at 6:23 PM, Albert Werth said:

The Chain Guide assembly was updated late last night, 10.10.19, in time for this mornings ride.

I decided to replace the single M5 bolt with a more substantial hat section Steel Bracket (bracket shown in Red for contrast).

The update allowed for two M5 screws affixing the Red Bracket  onto the Chain Guide (one visible and one added inside the Chain Guide assembly) and two M5 screws into the Seat Post Clamp.

I road with the new Chain Guide setup this morning, making many gear changes during the 12 mile ride. The updated assembly performed very well, zero flexing at an average seed of 17.45 mph!

I will keep you posted and report back after several hundred miles.

 1113005296_11-BikeSeatTubeClampChainGuide-Upgrade.jpg.e29553c3d1455c2742cec71bc24cd9cf.jpg 798715567_10-BikeSeatTubeClampChainGuide-Upgrade.jpg.74edf28003ffa1849115a5927d9ce2b4.jpg

The photos below are from the original post, the original assembly used a single M5 bolt between the Seat Post Clamp and the Chain Guide.

The Chain on my SONDORS X has fallen off twice in 1,400 plus miles, hardly worth mentioning, but I decided to track down a fix. The first incident was about a month after receiving the bike and beginning to consistently   riding a shared use bike path. I hit a rather large pot hole adjacent to the path, after an altercation with a motorist that violated my space in a crosswalk. As my rear tire fell into and bounded out of the hole, hard enough, that my chain jumped off the Chainring. I put the chain back on the Chainring and went on my way. The second time, last week, was during a downshift to first gear, as I reached my turnaround point. This time it was caused by poor alignment between my 56T Chainring and first gear. I fine tuned the Derailleur, adjusting the stops and alignment. Understanding the first occurrence was caused by the chain jumping vertically off the Chainring and the second with poor alignment, I wanted to attempt to cure both with a single change. I found a Chain Guide that I thought I could make work, or modify slightly, to make if fit.

On ‎10‎/‎9‎/‎2019 at 6:23 PM, Albert Werth said:

 

1575597271_9-BikeSeatTubeClampChainGuide.jpg.38f8096954e30141b7182eea548b8221.jpg  678326110_1-BikeSeatTubeClampChainGuide.jpg.7d24eb1d3b58f3ddffac206ed63d9e0f.jpg  1028540329_2-BikeSeatTubeClampChainGuide.jpg.a969027b71b2b91d81a733d48758aa03.jpg  1705261943_3-BikeSeatTubeClampChainGuide.jpg.75f6dac4f1607e8669936a66210d071a.jpg

 

1819391929_6-BikeSeatTubeClampChainGuide.jpg.ac8757f687862ee92b8509c318c500ef.jpg  2053677277_5-BikeSeatTubeClampChainGuide.jpg.0f00dab21a84bf94983b997533c1aa73.jpg  2060596660_8-BikeSeatTubeClampChainGuide.jpg.d5d60bf5e64c346eef8057f505f1e0c9.jpg  1362654653_7-BikeSeatTubeClampChainGuide.thumb.jpg.70e410ebb53ed92676096fc6beb1ed34.jpg

 

Off the shelf worked with the addition of a longer screw and elimination of a bracket. Here is a link to the Guide:

https://www.amazon.com/gp/product/B075N1HP86/ref=ppx_yo_dt_b_asin_title_o05_s00?ie=UTF8&psc=1

I will post an update, as to the durability and reliability of my fix. What I didn't show, was the small window I cut in the Battery Case, for clearance of the Guide's Clamp Hinge.

 

 

 

 

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