SKU: 53281138032
gravel bike threaded bottom bracket

gravel bike threaded bottom bracket Bombora

Sale price$19.20 Regular price$21.33
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Ships within 48 hours · Estimated delivery Aug 17 - Aug 22

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Description

gravel bike threaded bottom bracket BomboraThe Bombora, a "gravel bike" if there ever has been one. It is essentially a sportier version of the Evasion. The biggest difference between the two is the Bombora has a 68mm bottom bracket shell, so it takes a road crank, it's ditched the Rocker Dropout for a simple 12mm thru axle dropout, and it has a lighter tube set than the Evasion. The lighter tubing reduces weight and adds a bit more compliance. It is designed around a 650b 27. 5" wheel with a

The Bombora, a "gravel bike" if there ever has been one. It is essentially a sportier version of the Evasion. The biggest difference between the two is the Bombora has a 68mm bottom bracket shell, so it takes a road crank, it's ditched the Rocker Dropout for a simple 12mm thru axle dropout, and it has a lighter tube set than the Evasion. The lighter tubing reduces weight and adds a bit more compliance. It is designed around a 650b/ 27.5" wheel with a 2.3" max tire size. The Bombora is still sporting all of the braze-ons to have some racks, fenders, or whatever you want hanging off of it. 

IMPORTANT: The Bombora is NOT a mountain bike. Yes, it fits a large tire, but the tube set is light. Think about it as a "plus" size tire gravel bike. We keep the tube set light to keep the ride quality opulent. That means it's great for bombing some road/ groads, but it's not meant for single track or a big chunky jeep trail full of rocks and huge ruts for you to run into square on. If you do ride it on that kind of stuff and break it, we will not replace it.

Build Notes:

Designed around a 650b/ 27.5" Wheel with a 2.3" max tire size.

If you want to run it 700c, your max clearance will be a 48mm tire.

Takes a ROAD crank. Ideally 1x with a maximum 44 tooth chainring. You can set it up 2x, but it's on you to figure that out.

The Bombora uses Flat Mount Calipers front and rear. If you're struggling to find a brake setup, the Crust Palm Oil Brake Kit will help solve that problem.

Max Rotor Sizes: 180 Front | 160 Rear

Front and rear thru axles are included.

The painted frames are ED Coated to help protect from the elements and inhibit internal corrosion. This doesn't mean you're free to ride it into the ocean though. 

We do not recommend you running more than ~40mm of spacers. If you need more than that, you should consider sizing up.

HEADSET NOT INCLUDED

Details:

Handmade in Taiwan using Heat Treated Chromoly

Tig Welded

Color- Turquoise Marble Blue Lug Special Edition or Pastel Violet

Sizes- Extra Small 52cm | Small 54cm | Medium 56cm | Large 58cm | Extra Large 60cm

Head Tube Diameter- 1 1/8" (Threadless steerer)

Bottom Bracket- 68mm English (BSA) Threaded

Steerer Tube Length- 400mm

Fork Spacing- 12x100mm

Rear End Spacing- 12x142mm

Front Axle Thread Pitch & Length- 1.5x120mm

Rear Axle Thread Pitch & Length- 1.5x164mm

Seat Post Diameter- 27.2mm

Fork Axle to crown - 395mm

Weight- Frame (Large)- 2.27kg or 5lbs | Fork (Uncut Steerer)- 1.36kg or 3lbs

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: 53281138032

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Natasha Spencer
Massapequa, US
★★★★★ 3
Cheap
Size: 6FT*6FT, Color: Black
They serve their purpose as long as you leve them in one place and not moving them around and they're kinda flimsy and some of the velcros are cut too short and can't stay closed
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Reviewed in the United States on April 18, 2026
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Tiffany C
Houston, US
★★★★★ 5
Easy assemble and not to big!
Color: Black, Size: 132in-Large Metal Base
I bought this because I fo a lot of zoom/teams meetings and work just mandated no false backgrounds (don’t ask) soooo to hide my real home and allow others to roam free while I work I got this. Easy to assemble although you will need some space. I thought I might be to big at 11’ wide as I have a small desk area but actually it’s perfect and could use a couple more panels. Leaves just enough room so I’m not completely cocooned - I can move my chair and get up walk behind chair and exit space. Great deal and tax deductible!
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Reviewed in the United States on March 24, 2025
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Verified Purchase
Nicholas Schadewald
Whiting, US
★★★★★ 4
Fair Quality, Hour and a half build
Color: Black, Size: 132in-Large Metal Base
Key things: It does (more or less, not completely) fold in on itself, it does block nearly all visibility (especially from an angle), it was only about an hour and thirty minutes to put together, and it is light weight. Do I recommend? Yeah.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on September 1, 2025
S
Verified Purchase
Sheddran Smith
Fort Morgan, US
★★★★★ 5
Privacy
Color: Black, Size: 132in-Large Metal Base
Great for privacy especially if you have a roommate..
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Reviewed in the United States on May 18, 2026
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Sobhan Putalapattu
Omaha, US
★★★★★ 3
Assembly was a bit rough
Color: Black, Size: 132in-Large Metal Base
It is serving the purpose it is bought for. However the assembly was harder than it should have been. Joining the parts A and B (two iron pipes) was very hard. We can't use any tools to do that and it has to be done manually and every joint was very tight and very hard to to do. I had to struggle to make 24 joints for the length I need. At one point I was going to return it, but I needed it very badly so continued with the assembly.
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Reviewed in the United States on August 29, 2024

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