Skip to product information
1 of 19

GRIND GR1ST Carbon Gravel Bike - Shimano GRX RX820

GRIND GR1ST Carbon Gravel Bike - Shimano GRX RX820

Tailored for explorers and racers alike, the GR1ST equipped with the newest Shimano GRX groupset brings unmatched versatility to gravel cycling. This setup offers precise 12-speed mechanical shifting, tailored to the needs of gravel riding with three distinct gearing options: Unbeatable, Unstoppable and  Undroppable.

The GRX groupset is designed specifically for gravel, featuring ergonomic lever designs and textured brake hoods for improved grip and control. Its wider gear range and optimized gear steps are ideal for maintaining a smooth cadence over varied terrain. The robust construction of the GRX groupset enhances durability, keeping out grime and debris, which is essential for maintaining performance in dusty or muddy conditions.

Elevate your ride with wheel options from renowned brands such as Dandy Horse, Zipp, and DT Swiss. Whether you choose the speed and aesthetics of carbon wheels or the robust performance of aluminum, each wheelset is designed to complement the GR1ST’s capabilities, preparing you for any challenge ahead.

Regular price 15.000,00 PLN
Regular price Sale price 15.000,00 PLN
Sale Sold out
Tax included.
Color
Size Guide Gearing Guide

*Specification in photos may vary from the Build Kit. Always check the Build Kit for actual build details.

View full details

Build Kits

Build Kit Unbeatable (1x | 10-45) Unstoppable (1x | 10-51) Undroppable (2x)
Shift system Shimano GRX BL/ST-RX820 1x12 Shimano GRX BL/ST-RX820 1x12 Shimano GRX ST-RX820 2x12
Brake system Shimano GRX BR-RX820 Shimano GRX BR-RX820 Shimano GRX BR-RX820
Rotors Shimano RT-MT800 Centerlock (160mm) Shimano RT-MT800 Centerlock (160mm) Shimano RT-MT800 Centerlock (160mm)
Front derailleur N/A N/A Shimano GRX FD-RX820
Rear derailleur Shimano GRX RD-RX822-GS Shimano GRX RD-RX822-SGS Shimano GRX RD-RX820
Crankset Shimano GRX FC-RX820 (40T) Shimano GRX FC-RX820 (40T) Shimano GRX FC-RX820 (46/30T)
Bottom bracket Shimano SM-BBR60 BSA Shimano SM-BBR60 BSA Shimano SM-BBR60 BSA
Cassette Shimano CS-M8100 (10-45T) Shimano CS-M8100 (10-51T) Shimano CS-R8100 (11-34T)
Chain Shimano CN-M8100 Shimano CN-M8100 Shimano CN-M8100
Wheelset Zipp / DT Swiss / Dandy Horse Zipp / DT Swiss / Dandy Horse Zipp / DT Swiss / Dandy Horse
Tires Pirelli Cinturato Gravel M Pirelli Cinturato Gravel M Pirelli Cinturato Gravel M
Stem Zipp Service Course SL Zipp Service Course SL Zipp Service Course SL
Handlebar Zipp Service Course SL-70 XPLR Zipp Service Course SL-70 XPLR Zipp Service Course SL-70 XPLR
Tape Zipp Service Course CX Zipp Service Course CX Zipp Service Course CX
Saddle Fizik Vento Argo R5 Fizik Vento Argo R5 Fizik Vento Argo R5

Bike Features

Technical Specs

Frame: GRIND Toray Carbon Fiber

Fork: GRIND Toray Carbon Fiber / Tapered

Seatpost: GRIND Toray Carbon Fiber / 27,2mm

Seatpost Clamp: 31,6mm

Headset Bearings: 1 1/8" - 1 1/2"

Bottom Bracket: BSA 68mm / Threaded

Caliper Mounting: Flat Mount

Rotors: 140 / 160

Thru Axles: 12x100 / 12x142

Tire Clearance: 700Cx50 / 650Bx2.1

Biggest Chainring: 46T for 1x / 50/34T for 2x

Derailleur Hanger: UDH

Weight:  Frame 1350g (size 56, painted, including all hardware) / Fork 550g / Seatpost 180g

Geometry Chart

Frame Size XS S M L XL XXL
Stack (A) 537 557 568 590 609 628
Reach (B) 371 375 376 385 394 403
Head Tube Angle (C) 70,5 71 71,5 72 72 72
Head Tube (D) 120 140 150 170 190 210
Seat Tube Angle (E) 74,5 74 73 73 73 73
Seat Tube (F) 490 520 540 560 580 610
Top Tube Length (G) 520 535 550 565 580 595
BB Drop (H) 67 67 67 67 67 67
Front-Center (I) 594 595 600 611 626 641
Wheelbase (J) 1020 1025 1025 1037 1052 1068
Chainstay Length (K) 435 435 435 435 435 435
Fork Length (L) 395 395 395 395 395 395
Fork Rake (M) 50 50 50 50 50 50
Standover Height 759 786 803 823 843 863
Bike Geometry Chart

FAQ

What comes with the GR1ST?

Apart form the complete bike each GR1ST includes a spare derailleur hanger, spare bolts, and additional cable covers and guides.

Are the tires set up tubeless?

Yes, the tires are set up tubeless with Peaty's sealant.

What's the maximum chainring size?

For a 1x setup, the maximum size is 46T. If you're using a 2x setup, you can go up to 50/34T.

How do I choose the best gearing option?

To find the gearing setup that best suits your riding style and terrain, check out our detailed gearing guide.

Is custom paint available for the GR1ST?

Within this configurator you can choose from six predefined options. For more complex custom paint jobs, contact us directly or fill out the contact form.

What tools do I need to assemble my bike upon delivery?

You'll need a few basic tools: hex and torx keys, and a torque wrench. These tools will be used for securely attaching the handlebar, front wheel, and pedals, ensuring everything is tightened to the correct specification for a safe and enjoyable ride.

What is the weight limit for the GR1ST frameset?

The GR1ST frameset is built to handle a combined weight (rider, bike, and cargo) of up to 130kg, ensuring it can support your adventures without compromising performance and durability.

What maintenance tips can help prolong the life of my bike?

To ensure longevity, regularly clean your bike, especially after riding in mud or rain. Lubricate the chain frequently, check tire pressure before rides, and periodically inspect for wear and tightness on bolts and components. Annual professional servicing is also recommended.