SKU: 32503400491
gravel bike 50mm tires

gravel bike 50mm tires Bracken Gravel Frame

$23.55 $26.17
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  • USA
  • CAN

Ships within 48 hours · Estimated delivery Jul 31 - Aug 5

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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: 32503400491

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4.9 ★★★★★
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T
Verified Purchase
tom chang
Alexandria, US
★★★★★ 5
Good comfort, quality and classy
Size: 8.5, Color: Black/Ivory
’ve been wearing Cole Haan dress sneakers for work and travel, and they strike a really good balance between professional and comfortable. The biggest advantage is how lightweight they feel compared to traditional dress shoes. Most styles have sneaker-like cushioning, so you can walk or stand all day without your feet getting destroyed. The design is also versatile and look polished enough for business casual outfits but still casual enough to wear with jeans. They work especially well in office environments where a full formal shoe feels too stiff or outdated.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 10, 2026
D
Verified Purchase
Daniel C
Whiting, US
★★★★★ 5
New Favorite Work Shoe
Size: 9.5, Color: Black/Ivory
These Cole Haan Grand Crosscourt Daily shoes have quickly become my new favorite work shoes. They’re incredibly comfortable right out of the box, with just the right amount of cushioning and support to get through long days on my feet. I love that they look sleek and professional while still feeling casual enough to wear anywhere. The build quality is top-notch—durable materials and solid construction that make them feel like they’ll last a long time. Overall, these shoes strike the perfect balance between comfort, style, and practicality. I can honestly say I look forward to wearing them every day. Highly recommend for anyone who spends a lot of time on their feet but doesn’t want to sacrifice style.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 9, 2026
E
Verified Purchase
Edward Diaz
Charlottesville, US
★★★★★ 5
Well Made for price and style
Size: 10.5, Color: Black/Ivory
Great fit and very flexible. I also recommend buying shoe savers when purchasing this product. To help with toes wrinkles. The pair itself is stylish and very comfortable. Any purchase of this product will be greatly satisfied.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 16, 2026
P
Verified Purchase
Pierre
San Leandro, US
★★★★★ 5
Nice shoes
Size: 11.5, Color: Black/Ivory
The are very comfortable, and look great.
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Reviewed in the United States on April 8, 2026
J
Verified Purchase
Jeffrey Clemons
Belleville, US
★★★★★ 4
Comfortable
Size: 9.5, Color: British Tan/Ivory
Great foot support. Wore all day with not foot or back pain.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 29, 2026

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