| Size | Recommended Height (cm) | Top Tube Length (B) (mm) | Seat Tube Length (A) (mm) | Seat Tube Angle (E) | Head Tube Angle (F) | Standover Height (H) (mm) | Wheelbase (WB) (mm) |
|---|---|---|---|---|---|---|---|
| XS | 150-160 cm | 511 | 420 | 74.5° | 70° | 110 | 1002 |
| S | 160-170 cm | 522 | 450 | 75.25° | 70.75° | 130 | 1005 |
| M | 170-180 cm | 539 | 480 | 74° | 71° | 130 | 1018 |
| L | 180-190 cm | 556 | 500 | 73.75° | 71.25° | 170 | 1030 |
| XL | 190-200 cm | 573 | 520 | 72.5° | 71.25° | 170 | 1045 |
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Ships within 48 hours · Estimated delivery Jul 4 - Jul 9
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Description
grx 400 gravel bike RINOS Carbon Gravel Bike Sandman4.0 Shimano GRX400 – Rinosbike.euRinos Sandman 4. Gravel Rediscovered. Ready for bikepacking. Unmatched Comfort in long rides. Shimano GRX 400 Shifting System Lightweight, only 9. 8 kg. Full Shimano Hydraulic Brakes Equipped with a High Quality Carbon Frame The frame and fork are crafted from TORAY T800 carbon, providing both lightweight durability and exceptional performance. The RINOS carbon handlebar paired with an aluminum headset ensures stable, reliable riding. Lightweight and
Rinos Sandman 4.
Gravel Rediscovered.
Equipped with a High-Quality Carbon Frame
The frame and fork are crafted from TORAY T800 carbon, providing both lightweight durability and exceptional performance. The RINOS carbon handlebar paired with an aluminum headset ensures stable, reliable riding.
Lightweight and Versatile for All Riders
Available in five sizes (50-58 cm), the Sandman4.0 is ideal for riders from 155 cm to over 195 cm in height. Weighing only 9.8 kg, this bike is perfect for long adventures, with a comfortable ROCKBROS saddle for an enjoyable ride.
Complete Shimano GRX Shifting System
The bike's 20-speed (2x10) SHIMANO GRX 400 RD-RX400 rear derailleur, paired with the 11-34T cassette, delivers quick and precise gear changes over a wide range of conditions.
Wider Tires for Every Adventure
With lightweight RINOS rims and NOVATEC rear hubs, the Sandman4.0 offers rapid acceleration and superb traction on diverse terrains, thanks to its CST 700x40C tires with sidewall protection.
Full Hydraulic Braking System
Equipped with full hydraulic disc brakes, this bike provides confidence-inspiring stopping power on both ascents and descents.
Easy Assembly for Quick Rides
The Sandman4.0 comes nearly fully assembled, including tools and an easy-to-follow manual for setup and maintenance, making it your go-to for any terrain.
Specifications
Model: Sandman4.0
Manufacturer: RINOS
Color: Black Green / Black Sand / Gold / Blue
Wheel Size: 28 inches (700c)
Frame Size: 50cm / 52cm / 54cm / 56cm / 58cm
Item Weight: 9.8 kg (may vary depending on frame size)
Mounting Points: 26Frame: RINOS, Toray T800 Carbon
Fork: RINOS, Toray T800 Carbon
Handlebar: RINOS, Carbon, 420/440*28.6 mm
Headset: RINOS, Aluminum, 1-1/8" 28.6*52*52*39.8 mm
Seat Post: RINOS, Carbon 27.2*400 mm
Saddle: ROCKBROS
Shifters: Shimano GRX 400 ST-RX400, 20 speeds
Rear Derailleur: Shimano GRX RD-RX400
Brakes: Shimano GRX 400 Hydraulic Brakes
Cassette: Shimano CS-HG500-10 11-34T
Crankset: Shimano GRX FC-RX600 46-30T
Chain: Shimano 10-speed
Wheels: RINOS, 28" 700C*28H*14G, 38 mm
Rims: Aluminum 700C*14G*28H F/V, 14*38 mm
Hubs: Novatec 28H*14G
Tires: CST 700*40C with sidewall (60 mm Presta valve)
Accessories: Tools, User Manual
Size Chart
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 2128 reviews
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Product Reviews
★★★★★ 5
Great ankle socks that stay put at a great price!!
Size: 6-9, Color: Assorted
These are great! I have been looking for a low profile ankle sock that is thinner but doesn’t ride down. (Picky, right?) I try to walk 5-7 miles on my days off. So it’s very important for me to not have to stop every couple of hundred yards, bend down, fix socks, then continue on my way while grumbling about NOT GREAT socks. These are not those socks. They really do stay put!!! And enough cushion to be comfortable also. So definitely a repeat!!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 2, 2018
★★★★★ 5
Great quality, no holes or fading!
Size: Medium, Color: Black/Assorted
I purchased these socks a couple years ago and love them so much that I just recently purchased them again! They fit perfectly, don't make my feet sweaty, and hit the ankle at the right spot. The material is so good that over years they have not faded and even though I wear the same few pairs every day, they have no signs of thinning or holes! These are the ONLY socks that I buy. I have the black ones as well as the multi-colored ones. I will never buy another brand or style again!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 11, 2020
★★★★★ 5
Cute under armor socks
Size: Medium, Color: Black/Assorted
There's no show under armour socks.Are perfect for anybody who likes thinner socks. I loved them, I love the design the colors and the comfort and fit. Hylie recommend to those of you who like thinner socks.
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Reviewed in the United States on October 22, 2024
★★★★★ 4
Well made and perform well, a little constricting
Size: Medium, Color: Black Assortment (6-pairs)
These socks definitely keep most of the moisture away from my feet, even in wet conditions, which is why I bought them. I am diabetic, though, and the recommendation is to wear socks that don't constrict at any point. These have a tight band around the opening that while it is not uncomfortable on, leaves a mark when I take them off. So far it's been ok, but if you have any kind of swelling in your feet or ankles these would probably not be the best. My foot measures size 8 and I wear size 9 Brooks running shoes. The socks fit me just right but based on the size of the opening and the overall length, I wouldn't think they would fit anyone more than a size larger. Overall well made and perform well as you would expect from this brand.
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Reviewed in the United States on July 20, 2018
★★★★★ 5
long lasting!
Size: Medium, Color: Black/Assorted
literally my favorite sock i will buy forever. they just started busting through after 6 years and i wear them a lot
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on November 13, 2025
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