Felt Breed Advanced GRX 610

Felt

BreedAdvanced GRX 610

FrameFelt BREED 1.0, UHC Advan…Felt BREED 1.0, UHC Advance…
GroupsetShimano GRX ST-RX610Shimano 105 CS-R7101, 12-…
WheelsDevox WheelRDS.A1 wheel…Vittoria Terreno Dry, 700x38
Tire clearance50 mm

The current Breed 2.0 is an update to Felt’s carbon gravel race platform rather than a ground-up redesign. The headline changes are concentrated in the frameset: cable routing now runs through the headset via a new D-shape fork steerer, and the rear end is updated around UDH compatibility. Those are practical, market-relevant revisions. The internal routing brings the bike in line with contemporary premium gravel packaging, while UDH support improves drivetrain compatibility and future-proofs the frame for newer derailleur standards.

What has not changed is the Breed’s core identity. This remains a fast, race-oriented gravel bike built around unusually generous tire clearance and strong carrying capacity. Felt states clearance for up to 50 mm gravel tires or 29 x 2.0 in tires, which puts it at the roomier end of the performance-gravel category and gives the bike genuine range beyond smooth race courses. At the same time, the frame keeps extensive bottle and accessory mounting, including size-dependent capacity for up to four 750 ml bottles plus additional top-tube and extra mounts. That combination places the Breed in a useful middle ground: fundamentally a modern gravel race bike, but one that is better equipped than many rivals for long events, rougher terrain, and self-supported riding.

Felt Breed
Build
Size
01 / Buy

Where to get it.

1 retailer · size 54.

Size
1 retailer · Size 54
02 / Specifications

Spec sheet.

Every component shipped with this build.

01Frameset
2 components
FrameFelt BREED 1.0, UHC Advanced carbon
ForkFelt BREED 1.0, UHC Advanced carbon
02Drivetrain & brakes
11 components
Shift leversShimano GRX ST-RX610
Front derailleurShimano GRX FD-RX820, brazed-on
Rear derailleurShimano GRX RD-RX820, 12-speed (2x)
CassetteShimano 105 CS-R7101, 12-speed, 11-34T
Bottom bracketToken T47 Asymmetric, threaded, T47 77 Asymmetric
Rear brakeShimano BR-RX400, 2-piston, hydraulic disc
Front rotorShimano SM-RT70, 160mm, Center Lock
Rear rotorShimano SM-RT70, 140mm, Center Lock
03Wheels & tires
4 components
Front wheelDevox WheelRDS.A1 wheelset, tubeless ready, Center Lock, 12x100mm
Rear wheelDevox WheelRDS.A1 wheelset, tubeless ready, Center Lock, 12x142mm
Front tireVittoria Terreno Dry, 700x38
Rear tireVittoria Terreno Dry, 700x38
04Cockpit & contact
5 components
StemDevox StemR.A1, -7°
HandlebarsDevox DBar.A1 GXA 31.8mm (47cm: 400mm; 51cm: 420mm; 54cm: 440mm; 56/58/61cm: 460mm)
SeatpostDevox Post.C2 (47/51/56/58/61cm: 400mm; 54cm: 350mm)
Grips/TapeFelt VelvetGel tape with 3M reflective base and Felt Bubble-Tech F-Wing bar end plugs
03 / Geometry

Geometry & fit.

3 sizes published.

The available geometry points to a stable, confidence-first gravel fit rather than an especially aggressive cyclocross-style stance. Across the listed sizes, head tube angle sits at 70 to 70.5 degrees, chainstay length is a consistent 430 mm, and bottom bracket drop is 72 mm. Those numbers typically produce calmer steering, solid front-end composure on loose surfaces, and a planted feel through longer gravel descents. Wheelbase grows from 1023 mm in size 47 to 1035 mm in size 54, reinforcing that stable, high-speed character.

Fit dimensions are moderate and progressive. Reach moves from 374 mm to 385 mm across the shown sizes, while stack rises from 544 mm to 575 mm, suggesting a position that can be performance-oriented without being excessively low at the front. The 74-degree seat tube angle is fairly neutral and should help riders maintain an efficient seated pedaling position without feeling pushed too far forward. Combined with the generous tire clearance, these numbers support the Breed’s intended role as a race-capable gravel bike that still prioritizes control and all-day usability on rougher courses.

Reach × Stack · size 54mm

Where the handlebar sits relative to the bottom bracket — the single most important fit pair.

635599563526490STACK ↑345364383401420REACH →ENDURANCEFAST / LOWSize 54385 · 575
01Fit geometry6 values
Stack575 mm
Reach385 mm
Top tube550 mm
Headtube length132 mm
Standover height735 mm
Seat tube length500 mm
02Component geometry3 values
Crank length172.5 mm
Handlebar width440 mm
Stem length100 mm
03Handling geometry6 values
Headtube angle70.5°
Seat tube angle74°
BB drop72 mm
Offset50 mm
Wheelbase1035 mm
Chainstay length430 mm

Which size should I buy?

Slide your height to see the recommended size. GearWise's fit algorithm works from the published stack, reach, and ETT — the brand's own recommendation may differ.

Your height
5'8"173 cm
5'0"5'5"5'10"6'3"6'7"
Recommended size54Based on stack, reach & ETT for your height · score 83/100.

Calculated from GearWise's own stack / reach / ETT algorithm — the brand's size chart may recommend a different size, and a proper bike fit beats any calculator.

04 / Other builds

The lineup.

3 builds, ranging $2,999 – $11,999.

The 2025-on Breed range spans a wide price spread, starting with the Advanced GRX 610 at $2,999, moving to the Advanced GRX 820 at $4,499, and topping out with the FRD UN1TD LE SRAM Red XPLR AXS at $11,999. Even without a full component breakdown, the structure of the lineup is clear: Felt offers an accessible entry into the updated carbon platform, a higher-spec midrange option, and an uncompromising halo build built around top-tier electronic gravel equipment.

The most obvious value step is between the two Shimano models. The GRX 610 build is positioned as the price-conscious way into the new Breed frameset, while the GRX 820 build commands a substantial premium for a more upscale drivetrain tier. The FRD UN1TD LE sits in a different category entirely, aimed at riders who want the flagship execution of the platform and are willing to pay accordingly. As a lineup, it gives the Breed unusually broad coverage for a race-oriented carbon gravel bike: one build focused on entry price, one on enthusiast-level spec, and one on elite-level equipment.

01
FRD UN1TD LE SRAM Red XPLR AXS build
FRD UN1TD LE SRAM Red XPLR AXS
SKU 1004473124
$11,999
02
Advanced GRX 820 build
Advanced GRX 820
SKU 1003515179
$4,499
03
Advanced GRX 610 build
· Currently viewingAdvanced GRX 610
SKU 1003515181
$2,999On this page