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Description
mountainbike med el CEF50 Lightweight Bafang M820 eMTB | Carbon Frame4LEAF CEF50 Specification Category Component BASE PLUS FOX Frameset Frame TORAY T700 800 carbon fiber, 180mm travel, internal external routing, post mount disc brake, 148x12 thru axle. Fork Rockshox Psylo OR RST Blade OR Suntour ZERON 150mm Rockshox ZEB 180mm fork DOMAIN GOLD fork FOX 38 fork 180mm travel Seat post EXA 900i dropper post, 31. 6mm, 125 150mm travel. Headset 1 1 8" 1 1 2" Motor Motor BAFANG M820 250W 48V with BAFANG DCP 245 display for
4LEAF CEF50 Specification
| Category | Component | BASE | PLUS | FOX |
|---|---|---|---|---|
| Frameset | Frame | TORAY T700/800 carbon fiber, 180mm travel, internal/external routing, post mount disc brake, 148x12 thru axle. | ||
| Fork | Rockshox Psylo OR RST Blade OR Suntour ZERON 150mm | Rockshox ZEB 180mm fork/ DOMAIN GOLD fork | FOX 38 fork 180mm travel | |
| Seat post | EXA 900i dropper post, ø 31.6mm, 125/ 150mm travel. | |||
| Headset | 1 1/8"-1 1/2" | |||
| Motor | Motor |
BAFANG M820 250W 48V with BAFANG DCP 245 display for size S/L/XL BAFANG DCP 030 intergrated display for size M |
||
| Sensor | Torque sensor | |||
| Battery | Lithium-ion LG/Samsung cells 48V 17.4Ah 835Wh | |||
| Drivetrain | Thumb throttle | W/O | ||
| Rear Derailleur | SHIMANO cues U6000 | |||
| Front Derailleur | W/O | |||
| Crankset | Prowheel/BAFANG 170mm 36T. | |||
| Cassette | Shimano U6000 11-51T 11 Speed. | |||
| Shifters | Shimano U6000. | |||
| Brakes | SRAM G2r 4 Piston Brakes. | |||
| Chain | KMC 11S 136 links. | |||
| Wheelset | Rotor | Disc size: Sram 203mm Centerline. | ||
| Wheels | 29er/27.5 Aluminum Alloy+M-tech Hub. | |||
| Tyre | SCHWALBE NOBBY NIC tubeless ready 29erx2.6"/ 27.5erx2.8". | |||
| Components | Rear Shock | DNM AO-38RC 210*55mm shock. | Rockshox Deluxe Select 210*55mm shock. | FOX DPS / FLOAT X FACTORY 210*55mm shock 205*55mm. |
| Handlebar | Aluminum Riser Handle 780mm. | |||
| Saddle | PU leather + GEL + high-density sponge. | |||
| Pedal | Fiber-reinforced nylon pedals. | |||
4LEAF CEF50-Geometry
| 16"(S) | 17.5"(M) | 19"(L) | 21"(XL) | |
|---|---|---|---|---|
| Seat tube | 380 | 410 | 440 | 470 |
| TT | 577 | 605 | 630 | 655 |
| Chainstay length | 450 | 450 | 450 | 450 |
| HA | 64.5º | 64.5º | 64.5º | 64.5º |
| SA | 76.9º | 76.8º | 76.8º | 76.8º |
| BB | 20 | 20 | 20 | 20 |
| HT | 105 | 115 | 125 | 135 |
| Offset | 42 | 42 | 42 | 42 |
| Reach | 435 | 460 | 483 | 505 |
| Stack | 610 | 619 | 628 | 637 |
| FC | 773 | 803 | 830 | 856 |
| Seatpost | 31.6 | 31.6 | 31.6 | 31.6 |
| WB | 1222 | 1252 | 1279 | 1305 |
| Recommended Height | 155-165cm | 165-176cm | 177-188cm | 188-195cm |
Additional Parameters
- Weight 23 kg
- Dimensions /
- Wheel Size 27.5er, 29er
- Frame Color Matt Black
- Level BASE, PLUS, FOX
- Frame Size 16"(S), 17.5"(M), 19"(L), 21"(XL)
- 4LEAF Logo Stickers available
4LEAF CEF50-Upgrade
| Upgrade options | Cost (USD) |
|---|---|
| Carbon wheels | 300 |
| Enduro Carbon Handlebar | 40 |
| Carbon Seatpost | 40 |
| Titanium paddle | 50 |
| Color painting (customize) | 200 |
| 48V 5.8ah range extender | 350 |
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.3 ★★★★★
Based on 977 reviews
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Product Reviews
★★★★★ 3
Satisfactory
Color: Multicolor-4pack-a1, Size: X-Large
If your wanting an easy on high waisted underwear these work.
They are honestly strange material, a mix of three different things- not bad but different.
Not seamless, might ride up, slightly on the thicker side. Will last a while. Comfortable enough but not amazing.
Got for after a surgery and needed something different- these worked but would I get on a normal day probably not.
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Reviewed in the United States on May 15, 2026
★★★★★ 5
Super soft and comfortable!
I haven't bought new underwear in forever. I used to wear thongs, but now find them incredibly uncomfortable. The last few times I've tried to buy new underwear, the sizing was either way off (I'm a medium, but gave up after having to return them for a large and then extra large) or the quality was horrible (two brands stretch waaaay out and they can fall down while wearing them (I have larger ass-ets, so they shouldn't start to slide down during use). I tried these after buying some bamboo pyjamas and I love them! They are incredibly soft, comfortable, and stretchy. I can use them all day, and they work well, whether I'm lounging on the couch or wearing them under my spandex shorts at the gym, they don't ride up or slide down. They are both comfortable and look sexy, while providing support in all the right places. I haven't had them too long, so I can't speak on the durability, but they appear to be of good quality and I plan to order more, this time without the band.
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Reviewed in the United States on November 13, 2025
★★★★★ 5
Well made, light fabric. Waist doesn't roll.
These bamboo underwear really do keep you cool.
They fit true to size, and wear easily. the wide elastic waist band doesn't roll on me.
They are comfortable to wear, washed and dried easily.
The material has some stretch to it, but not a lot.
Well made, no stray strings. Perfect fit for me.
Just what I was looking for.
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Reviewed in the United States on May 17, 2026
★★★★★ 5
Good quality, smooth feel
I got these briefs so recently that have washed just one pair so far. First off, these are very comfortable, the material is soft & bordering silky, good quality sewing. Wash well and minimal if any shrinkage. They do come a bit wrinkled from the dryer but hey, these are underwear and will go on smoothly. If it were a t-shirt, I would look sloppy. I feel the sizing is accurate. No rolling and these don't announce themselves under clothing. Planning on getting more of these boxers and replacing my old panties.
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Reviewed in the United States on January 31, 2026
★★★★★ 4
A little snug on the thighs
Size: Medium, Color: Multicoloured G (5-pack)
Super comfy, soft and thin. For reference, I'm 5'6", 135, athletic build. I bought medium. I almost returned them because I thought they were a bit too snug on my thighs, and my thighs are not large at all. I was concerned about panty lines under snug clothing. But, because they're thin, I figured they would probably stretch, so I kept them. So far, I've only worn them under a night shirt, but they're super comfortable and they dont ride up at all. Very nice, but if your thighs are a little thick, you probably won't like them.
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Reviewed in the United States on August 29, 2025