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⚡ Shift into the future of e-biking — power, precision, and performance in every turn!
The DRIFT MANIAC 7 Speed Freewheel is a premium, electric bike-specific drivetrain component featuring 7 durable chromoly steel cogs with nickel plating. Designed to handle high torque from e-bike motors, it offers smooth shifting across 11-28T or 11-34T gear ranges. Compatible with standard threaded rear hubs, this freewheel enhances pedal assist synchronization and riding efficiency, making it an essential upgrade for serious e-bike riders seeking reliable performance on mixed terrain.




| ASIN | B07XYNSHZC |
| Age Range Description | Adult |
| Age range (description) | Adult |
| Best Sellers Rank | 20,057 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) 33 in Cassettes & Freewheels for Bikes |
| Bicycle Drivetrain Type | Derailleur |
| Bicycle Gear Shifter Type | Twist Grip |
| Bike Type | Electric Bike |
| Bike type | Electric Bike |
| Brake Style | Linear Pull |
| Brand | DRIFT MANIAC |
| Brand Name | DRIFT MANIAC |
| Colour | 7S-11-28T |
| Country Of Origin | China |
| Customer Reviews | 4.4 out of 5 stars 1,067 Reviews |
| Derailleur Configuration | Rear |
| Electric Assist Type | electrico |
| Gear Type | freewheel |
| Is Assembly Required | No |
| Item Weight | 483 Grams |
| Manufacturer | DRIFT MANIAC |
| Model Name | Epoch |
| Model Number | DMBA1829 |
| Model Year | 2020 |
| Number Of Speeds | 7 |
| Number of speeds | 7 |
| Power Source | Electric motor |
| Size | 11-28T |
| Specific Uses For Product | Mixed Terrain |
| Style Name | Utility |
| Suspension Type | Rigid |
| Suspension type | Rigid |
| Theme | 7 speed freewheel |
| UPC | 632016550721 |
| Warranty Type | Limited |
| Wheel Material | Alloy Steel |
A**R
Helps with over peddling. Engwe l20 3.0 pro
Very good . As people say gets rid of over peddling. Fitted to a 2026 engwe l20 3.0 pro. Use the correct tool . Mine was on very tight was worried going to break wheel taking old one off but gave it some and it came off all good .there is a nut on the spindle near the big hole where you put the tool in don’t take that off the tool fits around it .
M**.
Get removal tool
Good all round spool.
J**R
Working well
Good quality item and an ok price
J**R
Bought 2..good price
Price reflected in quality..1 still going strong working good...2nd has lasted only 400 miles and is clacking like mad...stripped sprocket down but cant re grease it..having to buy a replacement now..hope this lasts longer
M**S
Easy fix for an annoying issue with my bike.
Sorted the ghost pedalling problem on my Engwe L20 3.0 Boost. It fitted easily using the Park tool FR 1.3 and the bonus was, I didn't even need to adjust the derailleur. Would recommend.
A**G
Just Brilliant. 34t-11t 7 speed sprocket
I do a lot of combined Off & On road Moutain Biking. When on the road sections down hill I need more speed but on my standard sprockets I'm maxed out. Wow what a difference the 11t & 13t sprockets make but still have the large 34t sprocket for those big hills . On the standard sprockets set's that only go down to 14t sprocket, my MTB used to get ahead of my leg. My bike goes faster than my legs can pedal on those big down hill sections (on road). Now I can drop down another 2 gears. I get so much more speed & I can keep powering down those hills without my bike over taking me. The hills by me generally run out before I do. Just a No brainer if you get maxed out for speed as I was.
I**N
Perfect upgrade for Ancheer bikes
Used to upgrade an ancheer e-bike. Combin d with the larger front wheel chain set I changed for a larger chain set this is a great combo and turns the ancheer sport into a great country lanes bike. No longer are my legs going too fast on the road. Fitted fine, just make sure you leave the washer that was behind the ancheer freewheel on when you add the new one. You’ll need to adjust your stops and indexing a bit but it’s easy enough to get it working.
D**N
Welcome extra range
Used this to replace a Shimano 14-28 seven speed screw on. Worth noting that it’s almost identical in terms of spacings in relation to the wheel hub, but not quite. I got around this by adding a thin washer as a spacer on the wheel axle, but I guess you could also adjust the derailleur to compensate. The gear itself appears well made and behaves well when shifting up and down. The additional range compared with my old Shimano 14-28 is very noticeable (and welcome) as I often found myself unable to pedal fast enough to maintain high speeds on those occasions when either going downhill, or when I have a decent tailwind. Time will tell how durable it is, but so far so good.
R**R
Fits Hitway BK6 e-bike Perfectly!
My Hitway 7 speed ebike came with a 14 t to 28t Freewheel sprocket. The problem was the 14 tooth only allowed the pedals to be effective up to about 18km/h. An higher speed and my pedaling could not keep up to the assist. There are lots of sprockets available on Amazon but this is the only one that i could find that came equiped with 11 tooth to 28 tooth that would fit the Hitway motor on the rear wheel. It makes such a difference, I can now pedal up to 28 km/h with the pedals keeping up to the assist of the motor. I'm very happy about this! It only takes about 10 minutes to change but you do need to have the sprocket removal tool. Ordered separately on Amazon. Quality seems good but time will tell. I will update post if I run into any issues. At this point I definitely recommend this 11t-28t sprocket upgrade!
M**S
Passar perfekt
Works perfectly on my ebike. Make sure you have the correct tools for installation.
B**E
Works great, easy install
Works perfectly on my Rad Expand 5. I can now pedal over 20 mph with zero ghost pedaling! You also need the socket to remove the gear cassette. It's easy to install and made my rides far better. Love it.
A**Z
Recomendable
Excelente para actualizar mi bici ruta, siendo yo de México llego un día antes de lo indicado, muy conforme con el producto
G**U
Se adapta perfecta si o cambias por otra de 7 coronas
Piñonera de rosca muy bien acabada, a un precio aceptable. Siete coronas que van de la 11 a la 28. Yo cambié la antigua 14/32 por que buscaba un poco más de desarrollo y a ido perfecta, no he tenido que modificar nada más.
Trustpilot
2 weeks ago
3 weeks ago