SKU: 82752983563
gravel bike 50mm tires

gravel bike 50mm tires Bracken Gravel Frame

Sale price$22.34 Regular price$24.82
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  • CAN

Ships within 48 hours · Estimated delivery Oct 6 - Oct 11

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Description

gravel bike 50mm tires Bracken Gravel FrameBlackwater Bicycles Titanium Gravel Bracken: The All Road Gravel Platform Bracken is a refined titanium gravel bike built for speed, comfort, and everyday versatility. With 3D printed titanium junctions, clearance for up to 700 x 50mm tires, UDH compatibility, T47 threaded bottom bracket, and a lively 415mm chainstay design, Bracken is made for riders who want one premium bike for fast gravel, long mixed surface routes, and all day exploration. 50mm

Blackwater Bicycles / Titanium Gravel

Bracken:
The All-Road Gravel Platform

Bracken is a refined titanium gravel bike built for speed, comfort, and everyday versatility. With 3D-printed titanium junctions, clearance for up to 700 x 50mm tires, UDH compatibility, T47 threaded bottom bracket, and a lively 415mm chainstay design, Bracken is made for riders who want one premium bike for fast gravel, long mixed-surface routes, and all-day exploration.

50mm Maximum listed 700c tire clearance for gravel, rough roads, and mixed-surface riding.
415mm Short chainstays keep the Bracken responsive, quick, and lively under power.
UDH Modern derailleur hanger compatibility for easier service and future drivetrain options.
T47 Threaded bottom bracket standard for stiffness, serviceability, and long-term durability.
Tire Clearance

700 x 50mm clearance for real-world gravel.

Bracken gives riders the flexibility to run fast-rolling gravel tires, high-volume adventure tires, or more comfortable mixed-surface setups.

More Versatile Move between pavement, gravel, dirt roads, and rough connectors with one frame.
More Comfortable Higher tire volume helps absorb chatter and reduce fatigue.
More Confident Wider tires add grip and stability when surfaces get loose.
More Capable Room for bikepacking, fenders, and adventure setups.
With SRAM Wide front derailleurs, tire clearance may be limited to 45mm.
Why Bracken Exists

A modern titanium gravel bike without the compromise.

Bracken is built around the idea that a premium gravel bike should feel quick, stable, serviceable, and adaptable.

3D-Printed Titanium Junctions

Precision titanium details give Bracken a refined boutique finish.

UDH Compatible

Modern derailleur hanger compatibility for easier service and future drivetrains.

T47 Threaded BB

Threaded reliability combined with modern oversized stiffness.

Geometry

Built for all-day adventure.

Bracken geometry is designed for quick handling, stable descending, and all-day comfort.

Fit & Geometry

Measurement S
52cm
M
54cm
M/L
56cm
L
58cm
XL
60cm
Reach 380 390 400 415 430
Stack 560 575 595 615 630
Effective Top Tube 512 530 544 563 582
Seat Tube Length 480 510 520 530 540
Seat Tube Angle 74° 74° 74° 74° 74°
Head Tube Length 110 125 145 165 175

Handling & Chassis

Measurement S
52cm
M
54cm
M/L
56cm
L
58cm
XL
60cm
Head Tube Angle 70° 71° 71° 71° 71.5°
Wheelbase 1018 1022 1040 1061 1075
Chainstay Length 415 415 415 415 415
BB Drop 78 78 78 78 78
Fork Axle to Crown 395 395 395 395 395
Fork Offset 45 / 50 45 / 50 45 / 50 45 / 50 45 / 50

Trail Measurements

Measurement S
52cm
M
54cm
M/L
56cm
L
58cm
XL
60cm
Trail — 32mm Tire 78 / 73 72 / 67 72 / 67 72 / 67 69 / 63
Trail — 50mm Tire 85 / 80 78 / 73 78 / 73 78 / 73 75 / 69
Maximum Tire Clearance 700 x 50c 700 x 50c 700 x 50c 700 x 50c 700 x 50c
Maximum Chainring 48t 48t 48t 48t 48t
Brake Mount Flat Mount Flat Mount Flat Mount Flat Mount Flat Mount
Axle Standard 12x100 / 12x142 12x100 / 12x142 12x100 / 12x142 12x100 / 12x142 12x100 / 12x142
All measurements are listed in millimeters unless otherwise noted. Trail values are shown as 45mm offset / 50mm offset.
Technical Specifications

Built around modern standards.

Bracken combines titanium durability, modern drivetrain compatibility, internal routing options, flat-mount disc brakes, and generous tire clearance into one refined all-road gravel platform.

Specifications

Frame Material
Titanium 3D printed junction Ti 3AL-2.5V, 12x142 thru-axle, flat-mount disc, threaded T47 BB, internal routing
Fork Material
UD carbon, 12x100 thru-axle, flat-mount disc 160/180, internal routing
Sizes
Small 52cm, Medium 54cm, Medium/Large 56cm, Large 58cm, Extra Large 60cm
Fork Rake
45mm / 50mm
Fork Axle to Crown
395mm
Frame Weight
1750g +/- 2% size 56, no hardware
Headset
Integrated IS52 / IS52 internal drop-in
Seat Post Diameter
27.2mm
Bottom Bracket
T47 inboard bearing
Brake Mount
Flat mount
Rotor Compatibility
Front: 160/180, Rear: 140/160, adapters required
Axles
Front 12x100, Rear 12x142
Tire Range
Minimum 700 x 32c, maximum listed clearance 700 x 50c
Maximum Chainring
48t
Frame Routing
Headset internal or downtube internal
Mounts
4 bottle mounts, top tube mounts, fender compatible
Wheel Size
700C
Warranty
Backed by a 5-Year Limited Warranty

Request a Quote

Choose the frame, finish, drivetrain, wheelset, and cockpit setup that fits the way you ride. For full builds or custom options, contact Blackwater Bicycles for a quote.

Contact Us
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: 82752983563

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4.5 ★★★★★
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L
Verified Purchase
Lexi L
Whiting, US
★★★★★ 5
Finally, no more streaking and squeaking.
Size: 26"+16"(Top Lock)
Bought these a few months ago for my boyfriend’s car. It was for the purpose of replacing the OEM model that initially came with the car, as the squeaking was driving me nuts. Matching the pair to his car’s make and model here on Amazon was easy. The installation was easy as well, as they simply lock in with no difficulty for me. And they look fine as well. They’ve held up the last few months in the bitter winter here in the northeastern seaboard with no issues. No squeaking, streaking, or scraping. The material seems sturdy and of good stability, not flimsy. Definitely directing him to buy this brand again when they eventually need changed out.
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Reviewed in the United States on April 29, 2026
M
Verified Purchase
mfdumont
Carnegie, US
★★★★★ 5
Great price and perfect fit.
Size: 26"+20"+12"B(U/J Hook)
All three blades worked great for my 2023 Grand Cherokee. Well worth the money! Make sure you know how to take the old blades off! I had issues with the rear blade, but finally worked it out. The rear blade is 12 inches long, but the factory blade was 10 inches, presumably to clear the roof camera. FYI the 12 inch blade works fine.
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Reviewed in the United States on April 24, 2026
T
Verified Purchase
Tom C.
Fort Morgan, US
★★★★★ 5
Easy Install and Skip Free
Size: 19"+18"+10"(U/J Hook)
This is a good kit - the second one I bought for a different car. Wipers seem to wipe ok. That is if you first remove the little blade guards that come with each wiper, just like the ice skaters use for their Olympic level blades. And having all three blades (two front and one back) ordered specifically to fit the car, I didn't have to guess and take multiple trips to AutoZone or Advance or O'Riellys. Sometimes the reviewer bot likes to know about some specifics as well. So . . . these fight a great battle to resist rain. And with a lever inside the car, these wipers are easy to use once installed. They are really fast when they slide out of the box. Having had some cars where the wipers fell off, I can attest to the safety that any wiper gives the driver, regardless of it's durability or speed. So I look forward to the safety these wipers will afford over having metal arms scratching across the windshield like fingernails on a chalk board.
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Reviewed in the United States on February 22, 2026
D
Verified Purchase
Danny Brambila
Louisville, US
★★★★★ 5
Good quality.
Size: 15"+15"+13"
I needed to replace the wiper blades on my Jeep Wrangler JK, so I first went to a local auto parts store. The prices were pretty expensive, and they didn’t even have the correct replacement for my rear wiper blade. That’s when I decided to order the UTOBOO 15"+15" Windshield Wipers with 13 Inch Rear Wiper Blade Replacement online, and I’m really glad I did. The set arrived quickly and included everything I needed for both the front and rear wipers. Installation was very easy and only took a few minutes. They fit well on my Jeep, and the blades feel sturdy and made from good-quality materials. After using them, they wipe smoothly and leave the windshield clean without streaks, which is exactly what you want, especially in rain or dusty conditions. Overall, this is a great value compared to buying individual blades in-store, and it’s especially convenient since it includes the rear wiper replacement too. I would definitely recommend these to other Jeep Wrangler owners looking for an affordable and reliable option. ------Tip, don't forget to take off the green plastic, If you check the comments many people argues that the wipers don't work but in the pictures you can see they did not take off the green plastic protector. ----
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Reviewed in the United States on February 12, 2026
P
Verified Purchase
PR1NC3829
Birmingham, US
★★★★★ 5
Love
Size: 26+20+14"
I recently purchased the AUTOBOO 26” + 20” windshield wipers with the 14” rear blade, and I’m honestly very happy with them. Installation was quick and straightforward, even without much experience changing wipers. They fit perfectly on my car and clicked into place securely. The wiping performance is smooth and quiet, with no streaks or squeaking, even during heavy rain. I also noticed they clear water evenly across the windshield, which makes driving feel much safer, especially at night or on the highway. The rear 14” blade works just as well and was a nice bonus since it’s sometimes harder to find a good rear wiper included in a set. Overall, this set offers great value for the price, and I would definitely buy them again and recommend them to anyone looking for reliable, easy-to-install windshield wipers.
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Reviewed in the United States on March 22, 2026

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