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Bike Of The Day: Scott’s 2025 Supercross SX450 3XL OS20 BMX Race Bike

Supercross SX450

We got another Supercross BMX treat for today’s Bike Of The Day! This time is’t a black 2025 SX450 XXXL! This low profile bike is ready to race with all it’s high end parts. And I’m loving the yellow graphics on the frame. Shout out to Scott Melanson for submitting this bike. Be sure to give it a rating via the sliders below for the Bike Of The Month and Bike Of The Year charts

The primary thing I wanted was a bike that fit me well and was far smoother to ride. After testing a friends RS7 OS Frame and another’s Standard 125R, I found that the middle was going to be my best bet to be comfortable yet competitive. I also wanted something that visually was unique and stood out, but was as simply stated as it could be. When I saw the wheel come up on marketplace, and then a few days later saw the frame on sale (even though I missed the sale) from Bill Ryan’s post about OS20 Chromoly, I just had that visual look stuck in my head. ~Scott Melanson

PARTS LIST:

  • Supercross SX450 Chromoly XXXL 22.25″ OS20 Frame Set
  • Speedline Camp Integrated Headset
  • Dagger Pro OS20 w/ 20mm Dropout – Matte Black
  • Wheels Built by Vision Bikes
  • Answer Carbon Rims
  • Onyx Ultra hubs with ceramic bearings
  • 20 mm Helix Front
  • White, Red, and Yellow Fade Spoke Set of Sapim CX-Ray Spokes
  • Box3 120mm rotors
  • TPU Tubes
  • VeeRubber SpeedBooster OS20x1.75 Tires
  • Box One Chain Tensioners – 10 mm – Black
  • Box One Top Load 31.8mm Stem 1-1/8″ 60mm – Black
  • Carbon Stem Spacers
  • Box One OS 31.8 Cromo 8.5″ Handlebar – Black
  • ODI Rogue V2.1 Lock-On Grips
  • Box One Genius Brake Lever – Polish
  • Box Three BMX Mechanical Disc Brake Caliper
  • Insight Brake Cable – Red
  • Elevn Pivotal Full Logo Embossed Seat – Black/Red
  • Insight Pivotal Alloy Seat Post 27.2mm – Polish
  • Insight Upgrade Seat Clamp 28.6mm – Black
  • Answer BMX Ceramic Bottom Brackets – Red
  • Shimano DXR Cranks – 180 mm
  • KMC K1 WIDE 1/8″ CHAIN – Black/Siver
  • Rennen 4-Bolt Threaded 104BCD Gearing (Varying from 45, 45.7,45.9, and 46.1) Front Chainring
  • Insight Chainring Bolts 5 Pack 8.5X4MM ALU – Red
  • HT X3 Pedals – Red

RATE THIS BIKE:

  • !!!In an effort to keep the ratings more fair, Every featured Bike Of The Day starts with a rating of 5 in each criteria.
  • Users will have to login to make a rating.
  • NEW FOR 2025!! “Like” this bike via the big thumb below for the “Most Liked” contest
  • Leaving a comment is also highly recommended. Stay tuned to find out why
  • CLICK HERE to SUBMIT your bike.
2025 Supercross SX450 XXXL
{{ reviewsOverall }} / 10 Users (2 rated)
Color6.09
Originality6.1
Parts7
Overall Style6.5
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