1.800.651.4050 Mon-Sat 8am-5pm PT
CLICK HERE to join our Email List and get 15% off your first order*
*Restrictions Apply. Click for details.


Product Images

PRO Discover Carbon Gravel Handlebar
PRO Discover Carbon Gravel Handlebar
PRO Discover Carbon Gravel Handlebar
Click to zoom
PRO Discover Carbon Gravel Handlebar 1
PRO Discover Carbon Gravel Handlebar 3
PRO Discover Carbon Gravel Handlebar 2

PRO Discover Carbon Gravel Handlebar

Pricing and Order Section

Mfg PartNum:
rating(2 customer reviews)
Earn $22.61 in Rewards credit. Click to Learn More.
MSRP: $339.99
In Stock
This size is not eligible for Rewards points
Price matches are is not eligible for Rewards points
pricematch tag
InstantPrice MatchWhat is this?
Qualifies for Free Shipping!


Traveling Light

The PRO Discover Carbon Handlebar is a gravel bar developed to be extremely lightweight and function in conjunction with Shimano's GRX shifters and brakes. They are constructed from lightweight and robust UD carbon, feature an ergonomically designed top section and a compact drop.

The compact drops ensure ease of use for riders on rough gravel roads, allowing you to transfer from the tops or hoods to the drops without a major change in position. The Discover Carbon bars are designed to dovetail perfectly with Shimano's gravel specific GRX components and boast Shimano Di2 integration as well as full internal cable routing.


  • Gravel racing handlebars
  • UD carbon construction
  • Lightweight and robust
  • Compact design to the drops
  • Ergonomic top sections for improved comfort
  • Developed to dovetail with Shimano GRX
  • Full internal cable routing
  • Shimano Di2 integration
  • Flare: 20-degrees
  • Drop: 105mm
  • Reach: 75mm
  • Sizes: 40, 42 and 44cm widths
  • 31.8mm clamping diameter
  • Weight: From 205g

B-Stock - This product has one or more B-Stock units available. These units can be purchased at a discount (see option select). B-Stock units were returned from other customers and may have missing or damaged packaging materials. These units are otherwise as new. The full manufacturer warranty applies. Click Here for more information.

The product weight specified is an approximate weight based on the manufacturer's specifications (if available) or our measurement of one or two examples. For most products, the weight will typically vary by 5% to 10%.



Weight: 195 grams


Handlebar Clamp: 31.8 mm


Handlebar Shape: Gravel (Flared) 

40cm - 20deg Flare

Handlebar Style: Adventure Bars 

Mfg PartNum: PRHA0450 

42cm - 20deg Flare

Mfg PartNum: PRHA0451 

Handlebar Style: Adventure Bars 

44cm - 20deg Flare

Handlebar Style: Adventure Bars 

Mfg PartNum: PRHA0452 


Ordered by Most Relevant First
5 stars
4 stars
3 stars
2 stars
1 stars
Lovely shape and weight
by Anonymous
Cycling Enthusiast

The price is too high but these work excellent with the grx hoods. very comfortable. look great.

Reviewed 2/29/2024
Was this review useful to you? Yes/No
Thank you for your feedback.
excellent bars! very happy with these
by Gravel grinder
Cycling Enthusiast
Berkeley, CA
4 of 4 customers found this review helpful.

I had Salsa Cowchipper carbon bars and they got recalled and so I got these instead. I like them much better! The bars have a great feel on the road and are compliant on the rough stuff but also stiff when you are putting down the watts. Pro is Shimano's in house brand and the bars are very high quality. They also are outstanding for wiring Di2 because the holes for the wires are near the shifters and so the wires don't travel far before disappearing inside the bar. Most Di2 compatible bars have the holes at then ends of the drops which means the wires have to be run there and you can feel the wires under your bar tape. These bars are also developed to dovetail with GRX according to Pro. The bars are very light. I got size 40 cm they only weigh 205 grams. On the tops the levers are 40 cm apart and the drops are 48 cm apart (20 degree flair), so for me that is a great. When I'm on the road, I'm fairly aero on the tops, but when descending gravel I have the stability of the drops. The best feature of all for me however is that the drop is only 105 mm. That is rare. Most bars are 115-125 mm or more. But for gravel bars it works great because it means you can get into the drops more comfortably and easily. I highly recommend them. I have no affiliation with Pro nor any other cycling brand and I don't normally leave reviews. These had zero reviews and so I thought they deserve one.

Reviewed 5/22/2023
Was this review useful to you? Yes/No
Thank you for your feedback.


Articles will open in new tab.

Comparing bottom bracket types and standards.
You wanna go fast? Join the ceramic revolution!
Make your upgrades count. Here's the equipment that will help you ride your bike faster.
What to consider when selecting a crankset for your road bike.
additional content loading
additional content loading
additional content loading