I need help with this logo, I cannot find any clear answers... The frame is aluminum, the rear dropouts have this logo stamped and the bottom bracket does have two sets of serial numbers.

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  • 1
    I've been working on finding your logo. Would you post a picture of the frame along with your current picture? It would give me more to go on.
    – David D
    Commented Mar 2, 2021 at 17:20
  • 1
    a picture of the entire bike would help a lot more, looks aluminum from the welds?
    – BillyNair
    Commented Jul 2, 2021 at 1:00
  • I have the same bike stamp was anyone able too determine what kind of bike for sure . Mine has just a frame was hoping to put her back in her original Glory
    – Nicole
    Commented Feb 12, 2022 at 2:43
  • The one time where the serial number would have been helpful...all modern era Treks have a WTU... serial number
    – Noise
    Commented Feb 16, 2022 at 20:50

3 Answers 3


This is Trek - not certain of the exact era.

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Nathan has done the hard work of identifying the stamp. A great place to research BMX bikes is bmxmuseum.com. Navigate to the "Trek" link in the "T" section of "Bikes" navigation.

There are several aluminum Trek BMX frames that might match what you have. One example is the Trek SubCulture SS Based on the examples at bmxmuseum.com it looks like the bike was made from 1996 to 1998 Drop out for the SubCulture SS
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Here is a nice write up on a 1997 SubCulture. I'll include the parts list.
Frame: 1997 Trek Subculture - 7005 series aluminum serial # WTU100133M
Fork: 1997 Trek - 4130 chromoly, 1 1/8" steerer tube, 3/16" dropouts
Headset: Aheadset SX-1
Stem: Trek - stock alloy
Bars: S&M Dive - stock width
Bar Ends: Odyssey Gedda 2
Grips: Odyssey Gedda 2
Brake Lever: Diatech Tech 99
Brake Cable: Odyssey slic
Cable Housing: Pyramid
Rear Brake: Tektro 876 AG V-brakes - stock
Clamp: Trek - alloy double bolt
Seat Post: Kalin - 26.8mm alloy
Seat: Trek Team Issue - "Rocket Man"
Bottom Bracket: Trek - stock American size
Spindle: Vigorousport - stock
Crank Arms: Vigorousport - hollow 4130, stock
Pedals: Wellgo B102 - 9/16"
Chain Wheel: Trek spider with 44 tooth ring - stock
Free Wheel: ACS Claws - 17 tooth
Wheels: stock

  • Front Rim: Araya 7x - 36 hole, single wall
  • Front Hub: Formula - cartridge bearing, 3/8" axle
  • Rear Rim: Araya 7x - 36 hole, single wall
  • Rear Hub: Formula - cartridge bearing, 3/8" axle
  • Spokes: stock - 14 gauge
  • Nipples: stock brass

The Trek SubAtomic is another possible candidate. It looks like the 1996 model was aluminum.
Here is the back of one in orange
enter image description here

Both bikes might have the same frame. Makers often use the same frame with different parts and label them as different models.


Possibly a THRODWN. The BMX brand was started in 2015.

  • I am pretty sure I remember seeing this logo back in the 90s, but, if I am not mistaken, it was like a walmart bike brand, not a major "Contender"
    – BillyNair
    Commented Jul 2, 2021 at 1:02

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