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- USA
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Ships within 48 hours · Estimated delivery Jul 9 - Jul 14
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Description
mountainbike trek marlin Trek Marlin 4 Gen 3, XS, Dark Web– Sunshine Bicycle CenterMarlin 4 is a trail worthy daily rider that's perfectly suited for everyday adventures, on and off the trail. It features a trail savvy frame with a suspension fork, 8 speed Shimano ESSA shifting, and mounts for a rack and kickstand that make it an ideal choice for trail riders or anyone looking for a comfortable, stable commuter with the ruggedness of a real mountain bike. Will my bike have a curved top tube? Smaller frames have a top tube that dips
Marlin 4 is a trail-worthy daily rider that's perfectly suited for everyday adventures, on and off the trail.
It features a trail-savvy frame with a suspension fork, 8-speed Shimano ESSA shifting, and mounts for a rack and kickstand that make it an ideal choice for trail riders or anyone looking for a comfortable, stable commuter with the ruggedness of a real mountain bike.
Will my bike have a curved top tube?
Smaller frames have a top tube that dips down as it approaches the seat tube. This design makes for a lower standover height, which is good for shorter riders because it allows them to straddle their bike more easily. Larger frame sizes have a straight top tube because taller riders with longer legs typically don’t have the same issues with standover height.
Fit for every rider
Marlin comes in seven frame sizes to suit riders of any height, and Smart Wheel Size ensures you’re on the fastest wheel that fits. The smallest sizes even come with short-reach brake levers and narrower handlebars that give smaller riders better comfort and control.
Sizing & Fit
This Extra Small frame generally fits someone from 4'8" to 5'0", but there are some other factors, like arm and leg length, that determine a great fit. That’s why the best way to find your perfect fit is to consult the experts here at Sunshine Bicycle Center.
Specifications
*spec applies to all sizes unless otherwise noted
- Frame:
- Size: XXS , XS: Alpha Silver Aluminum, curved top tube, internal derailleur & dropper post routing, rack and kickstand mount, 135x5mm ThruSkew
- Size: S , M , ML , L , XL: Alpha Silver Aluminum, internal derailleur & dropper post routing, rack and kickstand mount, 135x5mm ThruSkew
- Fork:
- Size: XXS: SR Suntour XCM 30, coil spring, preload, hydraulic lockout, 42mm offset for 26'' wheel, 100mm QR, 100mm travel
- Size: XS: SR Suntour XCE 28, coil spring, preload, 42mm offset for 27.5'' wheel, 100mm QR, 80mm travel
- Size: S: SR Suntour XCE 28, coil spring, preload, 42mm offset for 27.5'' wheel, 100mm QR, 100mm travel
- Size: M , ML , L , XL: SR Suntour XCE 28, coil spring, preload, 46mm offset for 29'' wheel, 100mm QR, 100mm travel
- Hub front: Formula DC-20, alloy, 6-bolt, 5x100mm QR
- Hub rear: Formula DC-22, alloy, 6-bolt, Shimano 8/9/10 freehub, 135x5mm QR
Skewer rear: 173x5mm QR
- Rim: Bontrager Connection, double-wall, 32-hole, 20mm width, schrader valve
- Tire:
- Size: XXS: Bontrager Montrose Comp, wire bead, 30 tpi, 26x2.35''
- Size: XS , S: Bontrager Montrose Comp, wire bead, 30 tpi, 27.5x2.4''
- Size: M , ML , L , XL: Bontrager Montrose Comp, wire bead, 30 tpi, 29x2.4''
- Size: XXS: Bontrager Montrose Comp, wire bead, 30 tpi, 26x2.35''
- Shifter: Shimano M315, 8 speed
- Rear derailleur: Shimano ESSA U2000
- Crank:
- Size: XXS , XS: ProWheel alloy, 32T narrow-wide steel ring, 160mm length
- Size: S , M , ML: ProWheel alloy, 32T narrow-wide steel ring, 170mm length
- Size: L , XL: ProWheel alloy, 32T narrow-wide steel ring, 175mm length
- Size: XXS , XS: ProWheel alloy, 32T narrow-wide steel ring, 160mm length
- Cassette: Shimano HG300, 11-45, 8 speed
- Chain: KMC Z8.3, 8 speed
- Pedal: nylon platform
- Saddle: Bontrager Verse Short, stainless steel rails
- Seatpost:
- Size: XXS: Bontrager alloy, 31.6mm, 12mm offset, 300mm length
- Size: XS , S , M: Bontrager alloy, 31.6mm, 12mm offset, 330mm length
- Size: ML , L , XL: Bontrager alloy, 31.6mm, 12mm offset, 400mm length
- Size: XXS: Bontrager alloy, 31.6mm, 12mm offset, 300mm length
- Handlebar:
- Size: XXS , XS: Bontrager alloy, 31.8mm, 5mm rise, 690mm width
- Size: S : Bontrager alloy, 31.8mm, 15mm rise, 720mm width
- Size: M , ML , L , XL: Bontrager alloy, 31.8mm, 15mm rise, 750mm width
- Size: XXS , XS: Bontrager alloy, 31.8mm, 5mm rise, 690mm width
- Grips: Trek Line Comp, nylon lock-on
- Stem:
- Size: XXS , XS , S: Bontrager Comp, 31.8mm, 7 degree, 35mm length
- Size: M , ML , L: Bontrager Comp, 31.8mm, Blendr compatible, 7 degree, 50mm length
- Size: X: Bontrager Comp, 31.8mm, Blendr compatible, 7 degree, 60mm length
- Size: XXS , XS , S: Bontrager Comp, 31.8mm, 7 degree, 35mm length
- Headset: Semi-integrated, 1-1/8''
- Brake:
- Size: XXS , XS , S: Tektro HD-M276 hydraulic disc
- Size: XXS , XS , S , M , ML , L , XL: Power BH-M286TF hydraulic disc, 160mm rotor
- Size: M , ML , L , XL: Tektro HD-M275 hydraulic disc
- Size: M , ML , L , XL: Power BH-M286TF hydraulic disc, 180mm rotor
- Size: XXS , XS , S: Tektro HD-M276 hydraulic disc
- Brake rotor:
- Size: XXS , XS , S , M , ML , L , XL: Tektro, 6-bolt, 160mm
- Size: M , ML , L , XL: Tektro, 6-bolt, 180mm
- Size: XXS , XS , S , M , ML , L , XL: Tektro, 6-bolt, 160mm
- This bike has a maximum total weight limit (combined weight of bicycle, rider, and cargo) of 300 pounds (136 kg).
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
4.6 ★★★★★
Based on 343 reviews
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Product Reviews
★★★★★ 5
Great monitor!
Size: 34"/WQHD/1000R/HDR400
Excellent product and value! Great quality, makes gaming awesome.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 2, 2026
★★★★★ 4
Overall AMAZING moniter for the price
Size: 24"/FHD/240Hz
It dose everything it said it did without any downsides thus far. I will say having it grouped with all the other monitors in the listing kinda skews the reviews for all the monitors and the HDR 400 certification not being a real HDR value is a bit scummy for marketing however over all its a amazing monitor. virtually 0 input lantancy as far as i can tell and its more than bright enough for me. Its color calibration is a bit off by default but can be easily fixed by switching to the cool setting. I was expecting it to come with a display port cable but it only came with a HDMI cable. I would have liked to see a display port cable but i understand why its a HDMI cable. It was very easy to setup and easy to use as its just the stand, the monitor, and the HDMI and power cords. The monitor stand is nice but its obviously where Koorui cheaped out however for a monitor of this price you cant beat it.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on October 20, 2025
★★★★★ 5
Excellent Budget Gaming Monitor
Size: 24.5" 200Hz/FHD
I’m very impressed with this monitor for the price. The 200Hz refresh rate makes gameplay feel incredibly smooth, especially in fast-paced games. The picture quality is sharp, colors look good, and the screen size is perfect for both gaming and everyday use.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 10, 2026
★★★★★ 5
Best price best product
Worth it still got it after year 4 of it and haven't had a issue . Hits the high resolution it says it has but I doubt it's over 166hz ... even tho it claims unlimited lol ... decent for first time setup . I hit about 145 hours to 155hz max .... crisp big monitor make sure you use proper cables
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 27, 2026
★★★★★ 1
Better off saving your money for a quality brand like Acer or Samsung
Size: 24"/FHD/240Hz
If you were looking for a decent gaming monitor with a good refresh rate, you better keep looking. Honestly, I wanted to really like this thing. For $120, it ticked off a lot of great features for me: at least 120Hz refresh rate, 1080p quality, and some nifty reticule marks for FPS gamers like myself. And for a year I had no problems with it until a few days ago. The ability to control input's, power, and toggle the reticule features all lie on one singular button behind the monitor. Here lie's the issue; if that power button starts messing up, there is no way to control or turn on/off the monitor. This is exactly what happened on my unit; the power button/control went out and the monitor was basically useless. I contacted Koorui support via email, and all I got was a vague "Did you confirm the button is really broken" response. Replied back that I did, and the manufacturer has ghosted me. Basically, I HIGHLY advise you just save up a few $80 or $100 dollars and get a decent entry level gaming monitor. By going cheap with this one, you will just end up probably wearing out the power/control button and be left with an expensive paperweight. If you are DIY repair savvy, I am sure that replacing the power/control button probably is not that big of a deal. In which case, go right ahead as it is a decent monitor for the price. But with that said, having this thing break leaves you with basically no options to get it fixed and good luck trying to get a hold of Koorui for support. Sadly, this is a growing trend on buying electronic's here on amazon from smaller brand sellers.
*Update* So as of writing this review, I got Koorui to reach out to me. They would agree to replace the monitor for free, but I would have to front the shipping costs. They have their operations out in California, so if you live on the east coast then expect to pay around $40-50 for shipping for the monitor all the way out there (nearly half the monitor's value). I told Koorui that this just did not make any financial sense and they offered to refund me 50% of the monitor's value. However, they have yet to specify how they will send the refund, so I am unsure of whether I will see my partial refund when this is all said and done. So know that if you do proceed to get this monitor and need to return it past the 30 day return window covered by Amazon. TLDR: just save up an extra $50-100 for a big brand gaming monitor and save yourself the headache of dealing with all of this.
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Reviewed in the United States on October 24, 2024
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