Bianchi Impulso Comp GRX 610 Disc 2x12sp

Bianchi

ImpulsoComp GRX 610 Disc 2x12sp

FrameBianchi Impulso carbon fi…Bianchi Impulso Integrated…
GroupsetShimano GRX 610 ST-RX610Shimano CS-HG710, 12-spee…
WheelsV24G wheel, aluminium r…Pirelli Cinturato GRAVEL M…
Tire clearance42 mm

The Bianchi Impulso is a dedicated aero gravel race platform designed for high-speed efficiency and pack dynamics rather than backcountry adventure. Developed by Bianchi’s Reparto Corse, the current generation borrows aerodynamic cues from the brand's top-tier road bikes, resulting in a highly integrated chassis focused on power transfer and forward momentum. Moving away from the aluminum Allroad lineage, this carbon frameset utilizes a progressive geometry tailored for fast, rolling terrain and competitive events. The platform is built around an integrated fork-to-head-tube design, fully internal cable routing, and a proprietary D-shaped seatpost to minimize drag. With tire clearance capped at 42mm, the Impulso clearly signals its intentions: it prioritizes speed on groomed gravel and dirt roads over technical singletrack capability. It suits the aggressive gravel racer or fast-paced group rider looking for a sharp, road-adjacent feel off the pavement.

Bianchi Impulso
Build
Size
01 / Buy

Where to get it.

No retailers stocking size S.

Size
0 retailers · Size S

No retailers carrying size S right now.

02 / Specifications

Spec sheet.

Every component shipped with this build.

01Frameset
2 components
FrameBianchi Impulso carbon fiber frame (Flat Mount disc 140/160, PressFit 86.5 x 41, 12x142mm thru-axle, SRAM UDH hanger, max chainring 46-52T, tire clearance ETRTO 622-42mm)
ForkBianchi Impulso Integrated Fork, carbon fiber composite (Flat Mount disc 140/160, 12x100mm thru-axle, tire clearance ETRTO 622-42mm, 1 1/8" steerer)
02Drivetrain & brakes
11 components
Front derailleurShimano GRX 820 FD-RX820
Rear derailleurShimano GRX 820 RD-RX820 (max cassette sprocket 36T)
CassetteShimano CS-HG710, 12-speed, 11-36T (HG11 freehub body)
CranksetShimano GRX 610 FC-RX610, 46-30T (Crank Length: 170mm-XS(47)-SM(51), 172.5mm-MD(55)-LG(58), 175mm-XL(61))
Bottom bracketShimano SM-BB72-41B, press fit
Front rotorShimano SM-RT70 IceTech, Center Lock, 160mm
Rear rotorShimano SM-RT70 IceTech, Center Lock, 160mm
03Wheels & tires
4 components
Front wheelV24G wheel, aluminium rim 622x24c, 24h
Rear wheelV24G wheel, aluminium rim 622x24c, 24h
Front tirePirelli Cinturato GRAVEL M Classic, 40-622 (tan sidewall)
Rear tirePirelli Cinturato GRAVEL M Classic, 40-622 (tan sidewall)
04Cockpit & contact
5 components
StemVelomann AICR Alloy, -2° rise (1-1/8" steerer; 31.8mm bar clamp; lengths: 80mm XS(47), 90mm SM(51), 100mm MD(55), 110mm LG(58), 120mm XL(61))
HandlebarsVelomann Gravel ICR Alloy, 16° flare (Drop 130mm, Reach 70mm, 31.8mm clamp; widths: 400mm XS(47)/SM(51), 420mm MD(55)/LG(58), 440mm XL(61))
SaddleVelomann MITORA 149 H1 (250mm length, 149mm width)
SeatpostBianchi Custom D-Shape, 20mm offset (lengths: 300mm XS(47), 350mm SM(51)/MD(55), 380mm LG(58)/XL(61); carbon fiber composite)
Grips/TapeLa Spirale Ribbon cork
03 / Geometry

Geometry & fit.

8 sizes published.

The Impulso utilizes an aggressive, race-oriented geometry that places the rider in a low, aerodynamic posture. A relatively steep 71.5-degree head tube angle and 74-degree seat tube angle keep the handling quick and the rider’s weight forward for optimal power delivery. Paired with a 70mm bottom bracket drop, the bike maintains high-speed stability without sacrificing the agility needed to navigate tight pack dynamics.

Fit and cockpit integration vary significantly across the sizing and build tiers. The flagship RC models feature Bianchi’s Reparto Corse AeroFlare one-piece carbon cockpit, which dictates a fixed stem length and bar width per frame size, emphasizing aerodynamic gains but limiting fit adjustments. The Pro and Comp builds utilize a more traditional two-piece Velomann alloy stem and handlebar setup, offering easier customization for reach and drop. Across all builds, the proprietary D-shaped carbon seatpost features a 20mm offset, pushing the rider slightly rearward to balance the steep seat tube angle.

Reach × Stack · size Smm

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

625588550513475STACK ↑335359383406430REACH →ENDURANCEFAST / LOWSize S378 · 534
01Fit geometry5 values
Stack534 mm
Reach378 mm
Top tube526 mm
Headtube length118 mm
Seat tube length450 mm
03Handling geometry7 values
Headtube angle70.5°
Seat tube angle74.5°
BB drop70 mm
Offset50 mm
Front center600 mm
Wheelbase1014 mm
Chainstay length425 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 sizeSBased on stack, reach & ETT for your height · score 35/100.

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.

5 builds, ranging $3,200 – $7,500.

The Impulso lineup spans three distinct tiers—Comp, Pro, and RC—all sharing the same core carbon frame shape, 42mm tire clearance, and SRAM UDH compatibility. The entry-level Comp builds utilize mechanical Shimano GRX 610 12-speed drivetrains paired with heavy-duty Fulcrum RapidRed alloy wheels. These models offer a strong value foundation for privateer racers, though the heavier rolling stock adds noticeable weight.

Stepping up to the Pro tier introduces a full Shimano GRX 820 mechanical groupset and upgrades the rolling stock to Velomann Terbium carbon wheels, significantly reducing rotational weight for better climbing response.

The flagship RC models represent the fully integrated race spec. These builds move to electronic shifting with either Shimano GRX 825 Di2 or the 13-speed SRAM RED XPLR AXS. The RC tier also introduces the one-piece AeroFlare carbon cockpit, Reparto Corse 43mm deep-section carbon wheels with ceramic bearings, and factory-installed power meters—a single-sided 4iiii unit on the Shimano build and a SRAM RED power meter crankset on the XPLR model.

05 / Reviews

From the press.

1 review from the cycling press.

Reviewers characterize the Impulso as a highly efficient, purpose-built race machine that excels on fast, rolling courses. The chassis delivers immediate power transfer, with testers noting the "super stiff frame" feels "really responsive when you put the power down" (YouTube). This rigidity translates to excellent straight-line speed and pack-riding efficiency, though it comes with a tradeoff in overall comfort. On rougher terrain, the ride "felt a little harsher than some other bikes" that engineer more compliance into their carbon layups (YouTube).

Handling is generally described as stable and predictable at speed. Despite the firm ride quality, testers felt secure on descents, noting the bike remained "planted" and they were "not limited by the frame at all" when navigating downhill sections (YouTube).

The primary critique centers on the weight of the entry-level builds. While the frame itself is praised as a high-quality foundation, the stock alloy wheels on the Comp models make the bike feel somewhat "sluggish going uphill" (YouTube). Reviewers consistently suggest that upgrading the rolling stock reveals the frame's true climbing potential, transforming it into a sharper competitive tool.

06 / Compared to

Compared to.

Most-viewed comparisons.