SKU: 19182876970

Curve GXR4 (aka Kevin)

Sale price$4949.55 Regular price$5499.50
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Ships within 48 hours · Estimated delivery Aug 28 - Sep 2

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Description

Curve GXR4 (aka Kevin)Meet the latest GXR a. k. a. Kevin One of the first gravel specific bikes released, the Curve GXR model has been around since well before gravel became cool. Now, with wider tyre clearance, improved mounting options and UDH compatibility, the latest version of our Swiss Army Knife of bikes is more versatile than ever. We have been ahead of the Curve when it comes to gravel, and the GXR has years of adventure cycling experience woven into its DNA. The

Meet the latest GXR a.k.a. Kevin

One of the first gravel-specific bikes released, the Curve GXR model has been around since well before gravel became cool. Now, with wider tyre clearance, improved mounting options and UDH compatibility, the latest version of our Swiss Army Knife of bikes is more versatile than ever.

We have been ahead of the Curve when it comes to gravel, and the GXR has years of adventure cycling experience woven into its DNA. The Curve titanium GXR has been tested heavily on gravel adventures worldwide. Across South America, New Zealand, Switzerland, Swaziland, and more, the Curve squad has traversed the globe on this magnificent bicycle. 

Originally a playful jab at the bike industry's bike naming terminologies, the name “Kevin” soon caught on, and we couldn’t resist making it official. Kevin, the reliable Aussie all-rounder, is here to stay as a permanent nickname for our beloved GXR.



  • Wide Tyre Clearance
    The GXR4 has been designed with gravel cycling versatility in mind. While the GXR4 geometry is optimised for 700c x 44mm tyres, you can go as wide as 50 mm tyres on 700c wheels or 29 x 2.0" on our Dirt Hoops.
    With wider tyres being all the craze currently, Kev is set up ready to crush almost any trail!


  • Ready for Adventure
    Our Ride 415 VGM fork has taken load carrying to the next level, with a 8 kg rating on each fork leg. That’s a total carrying capacity of 16 kg. Featuring three cleverly designed mounts on each fork leg, the Ride 415 VGM fork can accommodate anything from extra water bottles, our Rocket Pooches, or other micro-pannier or fork-specific bags.
    While we favour 1x drivetrains, Kevin can be set up with a 2x drivetrain without hassle. With SRAM UDH compatible dropouts, Kevin is able to handle the widest range of groupset options currently available.


  • More Mounting Points
    The Curve Kevin comes equipped with rear rack mounts, fender mounts, 3 x bidon mounts, and top tube “bento mounts”. With extra tyre clearance, and a comparatively long wheelbase for the gravel genre which offers a more stable platform, Kevin is ready for epic day rides or multi-day bikepacking adventures, not just smooth gravel cruising.
    There is ample room for bikepacking bags on all frameset sizes. To make sure current, prospective or custom bagging fits your frame size please see our Bagmaker Drawing page.

 


GXR4 Specifications


Frameset

Frame - Titanium Curve GXR4. At the core of each frame is a 3Al - 2.5V Grade 9 aerospace grade titanium tubeset. This grade is optimal for bicycle frames and chosen for its fine balance of stiffness, compliance and durability.

Fork - Curve Ride 415 VGM carbon fork

Headset - Curve Integrated 42/52 mm semi-internal

Seat Clamp - Curve Alloy 31.8 mm

Other - Curve Cocky Headbadge, 12 mm Front & Rear Axles, spare SRAM UDH derailleur hanger



Groupset Options

SRAM Force E1 X0 T-Type

Shifter/Levers - Force E1 AXS 12 sp - LHR / RHF

Brakes - Force Flat Mount Disc // Centrelock Rotors 160 mm

Crank - Force E1 WIDE DUB - 38t | XXS-SM: 165 mm | MD: 170 mm | LG-XXL: 175mm

Bottom Bracket - T47 DUB internal 85.5 mm

Rear Derailleur - X0 T-Type 12 sp

Cassette - XS 1275 T-Type 10-52t

Chain - GX T-Type 12 sp

-

SRAM Rival E1 GX T-Type

Shifter/Levers - Rival E1 AXS 1x12 sp - LHR / RHF

Brakes - Rival Flat Mount Disc // Centrelock Rotors 160 mm

Crank - Rival E1 WIDE DUB - 38t | XXS-SM: 165 mm | M: 170 mm | LG–XXL: 175 mm

Bottom Bracket - T47 DUB internal 85.5 mm

Rear Derailleur - GX T-Type 12 sp

Cassette - XS 1275 T-Type 10-52t

Chain - GX T-Type 12 sp



Wheels

G4T 45 - 700C

Curve carbon all-road wheels:

- 21 mm internal, 28 mm external, 45 mm deep

- Hub: DT Swiss 350 24H Centrelock

- Spokes & Nipples: Sapim CX Ray spokes and brass nipples

Dirt Hoops - 29"

Curve carbon off-road wheels:

- 30 mm internal, 35 mm external, 27 mm deep

- Hub: DT Swiss 350 28H Centrelock

- Spokes & Nipples: Sapim CX Ray spokes and brass nipples



Finishing Kit

Bars - Curve Walmer Bar
XXS: 43 | XS-LG: 46 | XL–XXL: 50

Stem - Zipp Service Course
XXS–S: 70 mm | M–L: 80 mm | XL-XXL: 90 mm

Seatpost - Zipp SC 0 Setback 27.2 mm

Saddle - Prologo Dimension 143

Tyres - Vittoria Terrano Mixed T50 - 700c x 50 mm

Bar Tape - Curve black anti-shock

Please Note: Spec subject to change according to availability

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 19182876970

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J.D.E
Lexington, US
★★★★★ 5
Fabulous!
Special Size: 19" Capri with Pockets, Size: X-Small, Color: Flamingo Pink
These are AMAZING! Just received my first two pairs ( black and flamingo pink) and I am back ordering more! They are so smooth and soft and feel great! They fit so well-not to restrictive but have strength enough in the Lycra to look amazing (not the thin, flimsy, cheap tights/leggings). I live in the Sunshine State so I can wear these to workout and run indoor or outdoor practically year round. I prefer this shorter length because they are cooler to wear in the 95° heat 100% humidity. So hoping they make these in the green color and the bright blue color that is available in the full length active leggings! These are my new favorite crop active leggings! Please, please, please make more colors! Amazon, these are fabulous quality and style and at this price point, I'd buy every color and pattern available (I just don't do flesh tones).
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Reviewed in the United States on July 8, 2025
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Nancy Richardson
Natrona Heights, US
★★★★★ 5
Super comfortable fabric and launders well.
Special Size: 19" Capri with Pockets, Size: Large, Color: Taupe
Super soft fabric with a nice high waist that does not seem to rolll down when exercising, Yeah! As always I love a good cell phone pocke. After the comfortable fit I also ordered the Slate Blue version. BTW, I have had 2 knee replacements so this below the knee length is a perfect solution for my vanity issues!.
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Reviewed in the United States on July 2, 2025
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Kenzie Morgan
Houston, US
★★★★★ 4
Great product and quality!
Special Size: 19" Capri with Pockets, Size: Medium, Color: Slate Grey
I got the matching sports bra for these and I love the set together and honestly really liked the shorter leggings. The quality is incredible and super comfortable. For the amount I spent on this set it was absolutely worth it. The material is definitely thick enough so they are squat proof but they fit a little loose. I think I would size down one size if I bought another color in these. Overall great product!
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Reviewed in the United States on July 16, 2025
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Colleen McPherson-Otley
Grantham, US
★★★★★ 5
THESE
Special Size: 19" Capri without Pockets, Size: X-Small, Color: Navy
I love these leggings! Purchased Navy seriously I have had a gazillion brands, styles types, ie. flare, etc. over my legging years of which there are many. These are the best so far. Perfect for ME. I am 112lbs. 5'1" so not 'normal human size' as my kids say. The small is perfect. Hits 'capri' length on my smaller frame a little longer for me so yay for that too. These are super good quality and I am picky about leggings. They are better than Costco WHAT? Yes they are. **NOTE: These do NOT have a phone pocket which I was also looking for. I am over phone pockets for now. These you could dress up for a night out. Buying every color. The price point is low-so were my expectations. But VOILA! These were a super surprise. Happiness is my Amazon delivery human.
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Reviewed in the United States on May 24, 2026
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Nicole
Lexington, US
★★★★★ 5
Total Favs
Special Size: 19" Capri without Pockets, Size: XX-Large, Color: Navy
Love these. My new go to leggings. I wish I had a pair in every color. Soft and comfortable.
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Reviewed in the United States on February 28, 2026

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