SKU: 46132149599
custom gravel bike

custom gravel bike 3 Notch Bike

$22.15 $24.61
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USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Sep 13 - Sep 18

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Description

custom gravel bike 3 Notch BikeBlackwater Bicycles Custom Titanium Gravel 3 Notch: The Blank Canvas The 3 Notch is where your ideas take form a titanium gravel platform engineered to be shaped entirely around you. Start with one of our proven stock geometries, then tune the details for your terrain, your fit, your riding style, and the bike you have always wanted to build. Custom Geometry, fit, mounting options, routing, and ride character can be shaped around your exact needs.

Blackwater Bicycles / Custom Titanium Gravel

3 Notch:
The Blank Canvas

The 3 Notch is where your ideas take form — a titanium gravel platform engineered to be shaped entirely around you. Start with one of our proven stock geometries, then tune the details for your terrain, your fit, your riding style, and the bike you have always wanted to build.

Custom Geometry, fit, mounting options, routing, and ride character can be shaped around your exact needs.
415mm Updated stock chainstay length keeps the platform responsive while leaving room for real gravel setups.
395mm Modern gravel fork axle-to-crown standard for confident handling and larger tire compatibility.
Yours Built as a one-of-a-kind Blackwater machine, not a stock frame with a few small options.
Blank Canvas Platform

Start with a proven shape. Make it entirely yours.

The 3 Notch starts as a clean titanium foundation, then becomes whatever you need it to be. Build it as a fast gravel racer, a long-distance all-road bike, a fully loaded bikepacking rig, or something completely your own.

Geometry, tire clearance, mounts, routing, finish, and component fit can all be tuned around the way you ride and the landscapes you chase.

Fit-Tuned Choose a stock size or adjust reach, stack, angles, and contact points for your exact body position.
Terrain-Tuned Design the frame around fast gravel, mixed roads, bikepacking, chunky terrain, or all-day adventure.
Build-Tuned Plan tire clearance, drivetrain choice, mounts, routing, and cockpit setup before the frame is made.
Purpose-Built A ground-up custom titanium build shaped around your ride, not someone else’s stock idea.
How It Works

Your dream bike starts with the details.

Pick from one of the stock geometries below, then decide what should stay, what should change, and what needs to be built around your riding style.

1. Choose a Base Size Start with the closest stock fit from Extra Small through Extra Large.
2. Tune the Numbers Adjust geometry, tire clearance, handling, mounts, and fit details.
3. Pick the Build Select drivetrain, wheels, cockpit, fork, finish, and custom features.
4. Make It Yours The result is a one-of-a-kind Blackwater built around your vision.
Why 3 Notch Exists

Not a stock frame. A starting point.

The 3 Notch is for riders who know a bike should match the person riding it. Instead of forcing your fit, terrain, and goals into a fixed production frame, 3 Notch gives you a proven titanium platform that can be shaped into the bike you actually want.

Custom Geometry

Start from a stock size or tune reach, stack, angles, chainstay length, bottom bracket drop, and fit numbers to match your riding position.

Custom Features

Add the mounts, routing, tire clearance, drivetrain compatibility, and fork details that make sense for your exact build.

Custom Purpose

Build it for speed, comfort, distance, bikepacking, racing, all-road use, or a balanced gravel setup that does a little of everything.

Geometry

Stock geometry, ready to customize.

Use these numbers as the starting point for your 3 Notch build. The stock geometry below has been updated with a 415mm chainstay length and 395mm fork axle-to-crown.

Fit & Geometry

Measurement XS
50cm		 S
52cm		 M
54cm		 M/L
56cm		 L
58cm		 XL
60cm
Reach 375 380 385 395 405 415
Stack 565 570 580 595 605 620
Effective Top Tube* 526 533 546 560 578 593
Seat Tube Length 430 450 470 490 510 530
Seat Tube Angle 75° 75° 74.5° 74.5° 74° 74°
Head Tube Length* 123 129 140 155 165 181

Handling & Chassis

Measurement XS
50cm		 S
52cm		 M
54cm		 M/L
56cm		 L
58cm		 XL
60cm
Head Tube Angle 71° 71° 71.5° 72° 72° 72°
Wheelbase 1004 1011 1014 1024 1037 1047
Chainstay Length 415 415 415 415 415 415
BB Drop 75 75 73 72 72 72
Fork Axle to Crown 395 395 395 395 395 395
Fork Offset 51 51 51 51 51 51

Trail Measurements

XS
50cm		 S
52cm		 M
54cm		 M/L
56cm		 L
58cm		 XL
60cm
Trail 68 68 64 60 60 60
Fork Offset 51 51 51 51 51 51
Stock Chainstay 415 415 415 415 415 415
Stock Fork A-C 395 395 395 395 395 395
Custom Geometry Available Available Available Available Available Available
All measurements are listed in millimeters unless otherwise noted. Effective top tube and head tube length are estimated from the provided stock geometry and should be confirmed during final design approval.
Technical Specifications

Built around your standards.

3 Notch can be configured around the standards, clearances, and build details that make the most sense for your riding goals.

Custom Build Options

Frame Material
Titanium 3AL-2.5V custom gravel frame platform
Geometry
Choose stock geometry or request a full custom fit and handling profile
Fork Setup
Stock geometry shown with 395mm axle-to-crown fork; custom fork standards available by request
Chainstay Length
Stock geometry shown with 415mm chainstays; custom lengths available depending on tire and drivetrain setup
Bottom Bracket
Available in modern threaded standards, including T47 depending on build requirements
Brake Mount
Flat mount disc brake configuration available
Axles
Modern thru-axle standards available, commonly 12x100 front and 12x142 rear
Tire Clearance
Configured around your intended wheel and tire size
Routing
External, internal, downtube internal, or headset-style routing options depending on build goals
Mounts
Bottle mounts, top tube mounts, rack mounts, fender mounts, fork mounts, and bikepacking options available
Drivetrain
Design around 1x, 2x, mechanical, electronic, wide-range, or adventure drivetrain setups
Finish
Raw titanium, brushed titanium, etched graphics, anodized details, or custom finish options available
Warranty
Backed by a 5-Year Limited Warranty

Build your 3 Notch.

Pick from one of our stock geometries or tweak the numbers for a full custom build. Contact Blackwater Bicycles to start designing your dream titanium gravel bike.

Request a Quote
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: 46132149599

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4.4 ★★★★★
Based on 21 reviews
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Product Reviews
R
Verified Purchase
R. Steiner
West Palm Beach, US
★★★★★ 5
Practice makes perfect
These are actually three separately assembled screens that link together once ready, so I could gauge the improvement in my capability as a screen-assembling artisan. I’m 71 so getting down on the floor wasn’t all that easy. The first screen took 90 minutes as I tried to decipher the typically less than ideal pictorial directions, and to figure out how to position everything (including myself) working in a fairly small space. But by the third assembly I was a skilled craftsman and assembled it in 15 minutes. They look nice and do what I had hoped. All the parts were there, well-labeled, and the threading on the screw mountings were adequate although one required a bit more cajoling than the rest and worried me a bit until I finally got it right.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 21, 2023
S
Verified Purchase
S. M.
New York, US
★★★★★ 1
Not good quality
Color: Black, Size: Four Panel
Not the easiest thing to assemble, the screwdriver provided doesn't work so I hope you have your own. The fabric panels were at least an inch too short and weren't long enough to stretch to top and bottom, strain on velcro made them pop off with the slightest movement. Once assembled the panels were assembled they weren't stable at all and would fall over easily. Not very safe
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on October 2, 2023
T
Verified Purchase
TN212010
Fort Morgan, US
★★★★★ 5
Better than expected!
I ordered this room divider for my small apartment and the quality is surprisingly pretty good for the price paid — sturdy metal poles, mid-weight fabric panels enough for privacy (i.e.: not so see-through), brand new screws, and thick plastic end connectors. Instructions are figures only — READ THE PICTURES CAREFULLY! Highly recommend having a second person to help with assembling the divider panels together. This took me and my friend over an hour to assemble partly because there’s only one hex key to tighten the screws (and I forgot to add the plastic end connectors to the #3-labeled poles, so I had to take it apart and then set it up again). Overall satisfied with this purchase.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 4, 2022
J
Verified Purchase
Jennifer
San Leandro, US
★★★★★ 5
Privacy screen
I purchased this to set up as a privacy wall to make a makeshift guest “room” in our living room. It is a beautiful wine color it was very easy to assemble it took me like maybe all of five minutes and it’s very lightweight and easy to move. I think $50+ is steep for this item- it’s literally cloth stretched across a cheap frame- but it is not see through and it worked for what we needed. I would recommend it. There is a gap at the bottom that a cat can easily walk under or a nosey dog can poke their head through- but for people privacy it’s very good- and tall!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on August 4, 2022
A
Verified Purchase
Alicia
New York, US
★★★★★ 3
Wrong pieces included
Color: Black, Size: Four Panel
Was only able to use 3 of the panels the last poles were different from the others. The panels that we were able to put together are very nice and seems durable.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 4, 2025

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