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Chain Tensioner 2X1 Commuter Bicycle Part 4 Bike Blogger

4,740 views · Published 7 February 2016 · 1:35 · Indexed 22 October 2026

Channel: BikeBlogger · 2016 · People & Blogs

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I used an old rear derailleur as a chain tensioner for my 2x1 commuter bicycle project. There are 2x1 chain tensioners available like the Paul Melvin.

Mount the rear derailleur by screwing the mounting bolt onto the bike's rear derailleur hanger.

Screw in clockwise the rear derailleur's high limit screw. Screw it in far enough so that it aligns the pulley wheel approximately between the two front chainrings, and aligns straight with the rear cog on the wheel. You will probably have to screw it in all the way to do this.

Tip: If you cannot move the rear derailleur in far enough simply replace the limit screw with a longer screw. The screw size is typically M4 x 0.75mm thread pitch (a 4mm screw).

Video - How To Setup And Adjust Rear Derailleur On A Bicycle Bike Blogger
https://www.youtube.com/watch?v=Ffh__fmSP2w

Playlist - 2X1 Speed Commuter Bike Project
https://www.youtube.com/playlist?list=PLEZf1_jDCYJ3E-G7vG7nky6GnxGoZ98nz

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