Frisco E-Bike
Mountain bike drivetrain components

Representative photo. Product photos and current options are on the Amazon listing.

Freewheels · DNP

DNP Epoch 7-Speed Freewheel 11-28T

The DNP Epoch is the upgrade freewheel for hub-motor e-bikes: an 11-tooth small cog instead of the usual 14, which gives you a usefully taller top gear so you can still pedal along at 20–28 mph rather than spinning out. It is a thread-on 7-speed unit with a nickel finish and is a direct swap for the Shimano TZ-series on most bikes. Shifting is a touch less refined than Shimano and the pawls can be noisy, but for riders who pedal along with the motor, the 11T is the main reason to buy it.

Class 2/3 e-bike riders who spin out in top gear7-speed thread-on hub-motor bikesUpgrading a worn stock freewheel

Current price and availability are shown on Amazon.

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Key considerations

  • Thread-on only; not for cassette hubs
  • Derailleur must be able to sit close enough for an 11T cog — most Tourney units do
  • Usually needs a slightly shorter chain than a 14-28
  • DNP also sells 8- and 9-speed versions; match your shifter

Pros

  • Taller top gear
  • Direct thread-on swap
  • Good value

Considerations

  • Louder freewheeling
  • Slightly rougher shifting
  • Chain length may need adjusting

Features & specifications

Speeds7
Range11-28T

Specifications are manufacturer-published figures or our own notes; confirm on the current listing before purchase.

Compatibility notes

  • Thread-on freewheel hubs (most hub-motor e-bikes) with 7-speed shifters — confirm thread-on, not cassette

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Similar alternatives

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Hands-on bike repair work
FreewheelsFeatured

Shimano MF-TZ500 7-Speed Freewheel 14-28T

Most rear hub-motor e-bikes use a thread-on freewheel rather than a cassette, and the 7-speed Shimano MF-TZ500 (successor to the TZ-31) is the one that comes on a huge share of them. It screws onto the motor's threaded boss and comes off with a standard Shimano freewheel remover. The 14-28 range is conservative: fine for flat commuting and assisted riding, limiting if you want to pedal fast downhill. When the freewheel starts skipping or the pawls stick, replacing it is a cheap twenty-minute job if you have the tool.

Best for: 7-speed hub-motor e-bikes with a thread-on freewheel · Fixing a skipping or sticky freewheel · Like-for-like replacements

Mechanic working on bike components
E-Bike Chains

KMC Z7 Chain (6/7/8-Speed)

The KMC Z7 (formerly labeled Z51) is the standard replacement chain for 6-, 7- and 8-speed drivetrains, which covers most hub-motor e-bikes. It is an inexpensive chain that includes a reusable quick link, so installation needs only a chain breaker to size it. On an e-bike the chain carries only your pedaling load with a hub motor, so a basic chain like this lasts well; with a mid-drive you should step up to an e-bike-rated chain. Measure your old chain for length and replace the freewheel if the old chain was badly worn.

Best for: 7-speed hub-motor e-bikes · Budget drivetrain refreshes · Riders who want a quick-link install

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