Sandman GRX Coffee - Special Edition

Choose Your Groupset GRX 400 GRX 600 GRX 820 The Sandman GRX Coffee - Special Edition with Shimano GRX400 offers a reliable 10-speed mechanical groupset that combines proven gravel engineering with accessible performance. The 2×10 drivetrain uses a gravel-optimized 46-30T crankset paired with an 11-34T cassette, providing 20 distinct gear combinations. This configuration prioritizes solid gear steps for maintaining consistent cadence across varied terrain—whether cruising flat gravel roads, navigating rolling hills, or tackling steep climbs. The GRX RD-RX400 rear derailleur incorporates reliable chain stabilization technology with an adjustable clutch mechanism to minimize chain slap and improve chain retention on rough surfaces. The GRX400 hydraulic brake system delivers confident stopping power in rain, mud, dust, and all weather conditions. The shifters feature textured grip surfaces optimized for better control in wet conditions. The lever shape accommodates a wider range of hand sizes, particularly optimized for flared handlebars common in gravel cycling. Built on a TORAY T800 carbon frame and fork, the Sandman GRX Coffee achieves a complete weight of 9.8 kg. The RINOS carbon handlebar and seat post work with the aluminum headset to create structural integrity while managing vibration transmission. The GRX400 crankset uses proven Hollowtech II technology—a construction method that provides stiffness and power transfer efficiency while minimizing weight. The 46-30T chainring combination uses a gravel-optimized design to accommodate wider gravel tires and improve mud clearance. The drivetrain runs on a reliable 10-speed chain, featuring enhanced link plates for dependable chain engagement and retention. The wheelset pairs aluminum rims with Novatec 28H hubs, wrapped in CST 700×40C tires with sidewall protection and 60mm Presta valves. The bike includes 26 mounting points distributed across the frame for bikepacking bags and accessories. Available in five frame sizes (50-58 cm) across multiple colorways, the Sandman GRX Coffee accommodates riders from 150 cm to over 200 cm in height. The GRX400 groupset delivers mechanical shifting precision without electronic complexity or battery requirements, making it well-suited for gravel adventures, training rides, and everyday riding. Manufactured in the EU with included assembly tools and manual. Technical Specs - GRX 400 Model Sandman GRX Coffee - GRX400 Manufacturer Rinos Color Options Coffee (Special Edition) Wheel Size 28 inch (700c) Frame Sizes Available 49 cm (XS) / 52 cm (S) / 55 cm (M) / 58 cm (L) Rider Height for 49 cm (XS) 155–164 cm Rider Height for 52 cm (S) 165–174 cm Rider Height for 55 cm (M) 175–186 cm Rider Height for 58 cm (L) 187–196 cm Complete Bike Weight 9.8 kg Shipping Weight 13.8 kg Frame Rinos, Toray T800 Carbon Fork Rinos, Toray T800 Carbon Handlebar Rinos Carbon, 380-440 mm Headset Rinos Aluminum, 1-1/8" (28.6 × 52 × 52 × 39.8 mm) Stem Rinos Carbon Seat Post Rinos Carbon, 27.2 mm Saddle ROCKBROS Shifters Shimano GRX ST-RX400 (20-speed, 2×10) Rear Derailleur Shimano GRX RD-RX400 (with Shadow RD+ clutch) Front Derailleur Shimano GRX FD-RX400 Brakes Shimano GRX BR-RX400 Hydraulic Disc Crankset Shimano GRX FC-RX600, 46-30T Cassette Shimano CS-HG500, 11-34T (10-speed) Chain Shimano HG54-10 Pedals None (not included) Wheels Rinos 700C × 28H Hubs Novatec 28H Tires CST 700 × 40C with sidewall protection Valve Presta 60mm Bikepacking Mounts 26 mounting points for bags and accessories Accessories Included Tools, Assembly Manual The Sandman GRX Coffee with Shimano GRX400 combines proven mechanical drivetrain technology with lightweight carbon construction and practical componentry. The 2×10 configuration provides versatile gearing for varied terrain, while the mechanical shifting system offers straightforward maintenance and reliable performance without electronic dependencies. Well-suited for riders seeking a capable gravel bike with quality components at an accessible price point. The Sandman GRX Coffee - Special Edition with Shimano GRX600 steps up to an 11-speed mechanical groupset that combines advanced gravel engineering with enhanced component quality. The 2×11 drivetrain uses a gravel-optimized 46-30T crankset paired with an 11-34T cassette, providing 22 distinct gear combinations. This configuration prioritizes more closely-spaced gear steps than 10-speed systems for maintaining consistent cadence across varied terrain—whether cruising flat gravel roads, navigating rolling hills, or tackling steep climbs. The GRX RD-RX810 rear derailleur incorporates Shadow RD+ chain stabilization technology with an adjustable clutch mechanism to minimize chain slap and improve chain retention on rough surfaces. The complete GRX600 hydraulic brake system uses dual-control levers integrated with calipers featuring improved heat resistance and modulation. The brake components include increased pad clearance compared to previous GRX generations, reducing brake rub after heavy use. The GRX600 shifters feature Shimano's textured anti-slip coating on the lever blades and hoods, optimized for improved grip in wet conditions. The lever shape has been refined to accommodate a wider range of hand sizes, particularly optimized for flared handlebars common in gravel cycling. Built on a TORAY T800 carbon frame and fork, the Sandman GRX Coffee achieves a complete weight of 9.8 kg. The RINOS carbon handlebar and seat post work with the aluminum headset to create structural integrity while managing vibration transmission. The GRX600 crankset uses proven Hollowtech II technology—a construction method that provides stiffness and power transfer efficiency while minimizing weight. The 46-30T chainring combination uses a gravel-optimized design to accommodate wider gravel tires and improve mud clearance. The drivetrain runs on a reliable 11-speed chain, featuring extended link plates for enhanced chain engagement and retention. The wheelset pairs aluminum rims with Novatec 28H hubs, wrapped in CST 700×40C tires with sidewall protection and 60mm Presta valves. The bike includes 26 mounting points distributed across the frame for bikepacking bags and accessories. Available in five frame sizes (50-58 cm) across multiple colorways, the Sandman GRX Coffee accommodates riders from 155 cm to over 190 cm in height. The GRX600 groupset delivers mechanical shifting precision without electronic complexity or battery requirements, making it well-suited for demanding gravel adventures, multi-day tours, and mixed-terrain training rides. Manufactured in the EU with included assembly tools and manual. Technical Specs - GRX 600 Model Sandman GRX Coffee - GRX600 Manufacturer Rinos Color Options Coffee (Special Edition) Wheel Size 28 inch (700c) Frame Sizes Available 49 cm (XS) / 52 cm (S) / 55 cm (M) / 58 cm (L) Rider Height for 49 cm (XS) 155–164 cm Rider Height for 52 cm (S) 165–174 cm Rider Height for 55 cm (M) 175–186 cm Rider Height for 58 cm (L) 187–196 cm Complete Bike Weight 9.8 kg Shipping Weight 13.8 kg Frame Rinos, Toray T800 Carbon Fork Rinos, Toray T800 Carbon Handlebar Rinos Carbon, 380-440 × 90 mm Headset Rinos Aluminum, 1-1/8" (28.6 × 52 × 52 × 39.8 mm) Stem Rinos Carbon Seat Post Rinos Carbon, 27.2 × 400 mm Saddle ROCKBROS Shifters Shimano GRX ST-RX600 (22-speed, 2×11) Rear Derailleur Shimano GRX RD-RX810 (with Shadow RD+ clutch) Front Derailleur Shimano GRX FD-RX600 Brakes Shimano GRX ST-RX600/BR-RX400 Hydraulic Disc Crankset Shimano GRX FC-RX600, 46-30T Cassette Shimano CS-HG700, 11-34T (11-speed) Chain Shimano 11-speed Pedals None (not included) Wheels Rinos 700C × 28H, 38 mm depth Rims Aluminum 700C × 14G × 28H, 14 × 38 mm Hubs Novatec 28H × 14G Tires CST 700 × 40C with sidewall protection Valve Presta 60mm Bikepacking Mounts 26 mounting points for bags and accessories Accessories Included Tools, Assembly Manual The Sandman GRX Coffee with Shimano GRX600 combines advanced mechanical drivetrain technology with lightweight carbon construction and quality componentry. The 2×11 configuration provides versatile gearing for varied terrain with more precise gear steps, while the mechanical shifting system offers straightforward maintenance and reliable performance without electronic dependencies. Well-suited for riders seeking a capable gravel bike with enhanced components and refined control at a competitive price point. The Sandman GRX Coffee - Special Edition with Shimano GRX820 represents Shimano's top-tier mechanical gravel technology, combining innovations from both Ultegra road and Deore XT mountain bike lineups. The 2×12 drivetrain uses a gravel-optimized 48-31T crankset paired with the Shimano CS-R8100 11-34T cassette, providing 24 distinct gear combinations. This configuration prioritizes closely-spaced gear steps for maintaining consistent cadence across varied terrain—whether cruising flat gravel roads, navigating rolling hills, or tackling steep climbs. The GRX RD-RX820 rear derailleur incorporates Shadow RD+ chain stabilization technology, using an adjustable clutch mechanism to minimize chain slap and improve chain retention on rough surfaces. The complete GRX820 hydraulic brake system uses ST-RX820 dual-control levers integrated with BR-RX820 calipers, matched with Shimano's RT-CL800 rotors featuring Ice Technologies Freeza construction. These rotors use an aluminum carrier designed to resist heat deformation during extended braking. The brake calipers include increased pad clearance compared to previous GRX generations, reducing brake rub after heavy use. The GRX820 shifters feature Shimano's textured anti-slip coating on the lever blades and hoods, borrowed from their fishing product division for improved grip in wet conditions. The lever shape has been refined with a marginally narrower body to accommodate a wider range of hand sizes, particularly optimized for flared handlebars common in gravel cycling. Built on a TORAY T800 carbon frame and fork, the Sandman GRX Coffee achieves a complete weight of 9.6 kg. The RINOS carbon handlebar and seat post work with the aluminum headset to create structural integrity while managing vibration transmission. The GRX820 crankset uses Shimano's Hollowtech II technology—a construction method that provides stiffness and power transfer efficiency while minimizing weight. The 48-31T chainring combination uses a +2.5mm wider chainline compared to standard road groupsets, specifically designed to accommodate wider gravel tires and improve mud clearance. The drivetrain runs on a Shimano CN-M8100 12-speed chain, originally developed for mountain bike use, featuring extended link plates for enhanced chain engagement and retention. The wheelset pairs 38mm deep aluminum rims with Novatec 28H hubs, wrapped in CST 700×40C tires with sidewall protection and 60mm Presta valves. The bike includes 26 mounting points distributed across the frame for bikepacking bags and accessories. Available in five frame sizes (50-58 cm) across multiple colorways, the Sandman GRX Coffee accommodates riders from 155 cm to over 190 cm in height. The GRX820 groupset delivers mechanical shifting precision without electronic complexity or battery requirements, making it well-suited for multi-day gravel adventures, competitive events, or mixed-terrain training rides. Manufactured in the EU with included assembly tools and manual. Technical Specs - GRX 820 Model Sandman GRX Coffee - GRX820 Manufacturer Rinos Color Options Coffee (Special Edition) Wheel Size 28 inch (700c) Frame Sizes Available 49 cm (XS) / 52 cm (S) / 55 cm (M) / 58 cm (L) Complete Bike Weight 9.6 kg Shipping Weight 13.8 kg Frame Rinos, Toray T800 Carbon Fork Rinos, Toray T800 Carbon Handlebar Rinos Carbon, 380-440 × 90 mm Headset Rinos Aluminum, 1-1/8" (28.6 × 52 × 52 × 39.8 mm) Stem Rinos Carbon Seat Post Rinos Carbon, 27.2 × 400 mm Saddle ROCKBROS Shifters Shimano GRX ST-RX820 (24-speed, 2×12) Rear Derailleur Shimano GRX RD-RX820 (with Shadow RD+ clutch) Front Derailleur Shimano GRX FD-RX820 Brakes Shimano GRX ST-RX820/BR-RX820 Hydraulic Disc Crankset Shimano GRX FC-RX820, 48-31T (Hollowtech II) Cassette Shimano CS-R8100, 11-34T (12-speed) Chain Shimano CN-M8100 12-speed Pedals None (not included) Wheels Rinos 700C × 28H, 38 mm depth Rims Aluminum 700C × 14G × 28H, 14 × 38 mm Hubs Novatec 28H × 14G Tires CST 700 × 40C with sidewall protection Valve Presta 60mm Bikepacking Mounts 26 mounting points for bags and accessories Accessories Included Tools, Assembly Manual The Sandman GRX Coffee with Shimano GRX820 combines Shimano's proven premium mechanical drivetrain technology with lightweight carbon construction and practical componentry. The 2×12 configuration provides versatile gearing for varied terrain with the tightest gear steps, while the mechanical shifting system offers straightforward maintenance and reliable performance without electronic dependencies. Well-suited for riders seeking a premium capable gravel bike with quality components at a competitive price point. Sizing Guide Choose the frame size that matches your height for optimal comfort and performance. Size 49 cm (XS) 155–164 cm Size 52 cm (S) 165–174 cm Size 55 cm (M) 175–186 cm Size 58 cm (L) 187–196 cm Geometry & Sizing Details Frame geometry reference diagram showing all measurement points Detailed Geometry Measurements Measurement XS (49cm) S (52cm) M (55cm) L (58cm) Body Height (Reference) 155-164 cm 165-174 cm 175-186 cm 187-196 cm A - Seat Tube Insert Length 180 mm 220 mm 250 mm 270 mm B - Reach 374.1 mm 377.5 mm 386 mm 397.1 mm C - Top Tube Length, Horizontal 535 mm 550 mm 575 mm 595 mm D - Stack 542.6 mm 563.4 mm 598.6 mm 627.1 mm E - Wheelbase 1008.9 mm 1014.5 mm 1029.6 mm 1049.8 mm F - Chainstay Length 430 mm (all sizes) G - Front Center 593.8 mm 599.4 mm 614.5 mm 634.5 mm H - BB Drop 70 mm (all sizes) I - BB Height 285 mm (all sizes) J - Seat Tube Angle 73.5° 73° 72.5° 72.5° K - Head Tube Angle 71° 71.5° 72° 72° L - Seat Tube Length 490 mm 520 mm 550 mm 580 mm M - Head Tube Length 120 mm 140 mm 175 mm 205 mm Standover Height (700C×40C) 776.4 mm 793.4 mm 833.4 mm 863.9 mm N - Fork Rake/Offset 50 mm (all sizes) O - Fork Length, Full 397 mm (all sizes) P - Trail 69.3 mm 66.1 mm 62.7 mm 62.7 mm Installation Guide Your Sandman GRX Coffee arrives nearly fully assembled. Simply attach the handlebar, seat post, pedals, and front wheel following the included manual. Fine-tune the hydraulic disc brakes and gear shifting to your preference, then head out for your first ride.