So you're looking for Bike Derailleurs and more.
There are products and videos for you on the topic.
See them below.
Hopefully you'll find something in this category of "Sports & Outdoors Products - Cycling".
For more products, have a look in the other posts in the category of "Sports & Outdoors Products".
Shimano Deore 9-Speed Mountain Bicycle Rear Derailleur - RD-M591 : Rear Bike Derailleurs : Sports & Outdoors
The Deore RD-M591 rear derailleur features smooth and crisp shifting at all times. Shimano proven technologies deliver durability and reliability while offering outstanding performance at an affordable price. 9-speed compatible Compatible with all Shimano 9-speed HG cassettes, 9-speed...
SHIMANO Altus Mountain Bike Front Derailleur - Multi-Clamp : Sports & Outdoors
7/8 speed design. Steel inner and outer links with steel chain cage. Multi-clamp to fit 28.6-34.9mm frames. Multi-pull design. Total gear teeth: 48.
M-Wave Bicycle Rear Derailleur Hanger (Chrome) : Rear Bike Derailleurs : Sports & Outdoors
The Ventura Rear Derailleur Hanger/Drop Out #7 works with most low end bicycle derailleurs and frames.
Sunlite Long Cage 7spd Rear Derailleur : Rear Bike Derailleurs : Sports & Outdoors
5/6/7-speed rear derailleur. Highly affordable and reliable. Bulk packed and pollybagged.
Smaller Gears, Slower Riders? Tour de France Gears Explained | Tour de France 2017
Simon takes a look around the Katusha Alpecin mechanics truck to see how cassettes/rear derailleurs have revolutionised to the needs of cyclists. Subscribe t...
How to Adjust Gears & Derailleurs | Bicycle Repair
Shift into Higher Gear with these Assets for Cyclists Multi Function Bike Tool with Patch Kit & Tire Levers: Bicycle Horn and Micropho...
Do I Need A Short, Medium Or Long Cage Rear Derailleur? | Maintenance Tips
Bigger gear ratios need to have a compatible rear mech. Here's our guide to choosing the right one. Subscribe to GCN: Get exclus...
How to Adjust a Front Derailleur
The majority of front shifting problems can be solved with basic adjustments to the limit screws and index setting of the front derailleur system. In this vi...
Allen Sports Deluxe 4-Bike Hitch Mount Rack (2-Inch Receiver), Black : Automotive
Allen Sports 4-Bike Hitch Racks for 2 in. Hitch
RAD Cycle Products Adjustable Bike Trainer Fitness Desk Portable Workstation Standing Desk : Sports & Outdoors
RAD Cycle Products Adjustable Bike Trainer Fitness Desk Portable Workstation Standing Desk
Garmin Instinct Review: Everything you need to know
In-Depth Review: https://dcra.in/GarminInstinctGarmin Instinct on Amazon: https://amzn.to/2Hex975(Links help the site! Thanks!!)Here's everything you need to...
Garmin Instinct // The Review - The Adventure GPS Sports Watch
Comprehensive review of the Garmin Instinct - a durable, GPS sports watch with a design unlike most Garmin wearables. Get it here: http://geni.us/garmininsti...
Outdoor Products - Watertight Box : Boating Dry Bags : Sports & Outdoors
Outdoor Products - Watertight Box
Bean Outdoors Product Review Sitka Core Heavyweight ZipT
Here we take a look at this great second/mid layer offering by Sitka. If you need something to complement your early season setup without going with a jacke...