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Originally conceived as an E-MTB product to deliver long service life and extra range over fewer gears
Box Four 8 Speed 11-42T Cassette
The chain boasts the same unique ability to mate with a wide/narrow chainring except you give up the trick DLC top coat
The main difference here versus Box Two is the use of additional weight-reducing holes on the cogs
See the comparison chart - the data speaks for itself
Box Two Prime 9 X-Wide Rear Derailleur Size:X-Wide Cage Originally conceived as an E-MTBThe Box Two Prime 9 Rear Derailleur is very similar to the Box One version however, to be more wallet friendly, it offers a non adjustable Tri Pack Clutch, bushing pulleys and some muted finishes. Box Two rear derailleurs are still optimized for 11 50t cassettes and offer durability and performance for the most demanding terrain, just at lower price! IMPORTANT NOTES Prime 9 Technology View Prime 9 Drivetrain Compatibility Manual How is the Ebike
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