2021 Sunday Ex Review

4.0 rating

The 2021 Sunday EX bike has two options. Choose between the matte trans red Erik Elstran Signature with a 20.75″ top tube. Or the 21″ Matte Raw Jullian Ortega signature. Both options have some aftermarket parts, but they aren’t the best bikes.


  • ✅ – Full Chromoly
  • ⛔️ – Under $500
  • ⛔️ – Double Wall Rims (Rear is a double wall)
  • ⛔️ – Pegs
  • ✅ – Fully Sealed Bearings
  • ✅ – 3 pc. Cranks
  • ✅ – Freecoaster – (Erik Elstran Version has a cassette) – What is a freecoaster?
  • ✅ – Brakes
  • ✅ – Gyro tabs


With a 100% chromoly frame, fork, and bars, the 2021 EX is a bike that is difficult to match.

These bikes pushes the envelope with a tough, pro-level, Odyssey/Sunday parts package and frame design upgrades like the EX’s removable braking hardware mean business, even when your approach to riding is all about having fun.

from: danscomp

Key Features

  • 100% Chromoly Frame, Fork, and 4-piece Bars
  • Sunday Signature Wave Down Tube
  • Odyssey Broc Raiford Grips
  • FSA Conical Headset
  • Sunday Sabretooth v2 25t Sprocket
  • Sunday Saker 3-PC Cranks, 175mm
  • Odyssey Path Pro OEM 2.40″ Tires
  • Sealed Front and Rear Hubs



$529.99 on Danscomp



FRAME MATERIAL: 100% Chromoly Frame – Read about Chromoly here
TOP TUBE LENGTH: 20.75″-21″
FORKS: Sunday EX, 20″, 100% chromoly fork w/ 2-piece steerer tube and welded pre-load, 25mm offset
BARS: Sunday, 100% chromoly, 2-piece 9″
STEMSunday Freeze front load, 48mm
HEADSET: FSA integrated conical, 1-1/8″
BRAKESOdyssey Springfield U-brake
FRONT HUB: Sunday, 36H, low-flange, sealed , 3/8″ female axle
FRONT RIMSunday Lightning, 20″, 36H
REAR HUB: Sunday, 36H, sealed, 3/8″ female axle w/ 9T driver
REAR RIMSunday Lightning, 20″, 36H
TIRESOdyssey Path Pro OEM, 20 x 2.4″
SPROCKETSunday Sabertooth v2, 25T, 6061 aluminum
CRANKSSunday Saker, 175mm
BB: Sealed, Mid, 19mm
PEDALSOdyssey Twisted PC Pro
SEAT: Sunday Badge, Pivotal
WEIGHT: 25.75lbs (with brakes)

Frame Geometry

A: Top Tube Length:  20.75″ & 21″ – Learn what size is right for you here.

This is a tall toptube.

Perfect for riders that are between 5’4″ to 6’4″

Getting a top tube that is taller than suggested will make the bike feel more controlled and less responsive

Getting a top tube size that is smaller than normal will make the bike feel a lot more snappy and responsive.

B: Chain Stay Length: 13.2” & 13.5″ – Learn About Chain Stays Here

This is a long chain stay.

This will make the bike feel controlled.

A short chain stay makes the bike feel twitchy. Spins will be easy, but airing and jumping might feel hard to control.

A long chain stay will make the bike feel really controlled. Spins will feel sluggish, but manuals and air tricks will feel nice because it will be more stable and controlled.

C: Head Tube Angle: 75° – Learn About Head Tube Angles Here

Steep head tube angles make the bike “snappy” meaning more responsive to fast turns. 

A less steep head tube gives you more control.

D: Seat Tube Angle: 71°

E: Bottom Bracket Height: 11.5″

F: Stand over height: 9″

This is a tall standover. 

A tall standover gives you more stability and will make bars, and t-bogs easier. 


For right around $500, the Sunday EX could be yours. I’m not sure how I feel about this though. Part of me says the aftermarket parts are killer and the bike is worth it. But another part of me is mad about the single-wall rims.


The 2021 Sunday EX is right in between a beginner bike and a mid-level bike. It has aftermarket parts and the full Chromoly parts. However, the single wall rims throw me off. Granted these Sunday lightning rims are better than most single-wall rims. Read more here

Buy if you are learning:

  • 180
  • 360
  • bar spin
  • grinding rails
  • fakie tricks

Don’t buy if you are learning:

  • big drops
  • tail whips
  • 540


Before buying the 2021 Sunday EX, you need to ask yourself a few questions. Do you need 21″ or 20.75″? Do you want a freecoaster? Do you like raw, or trans red? Depending on how you answer these, you can figure out the best bike option for you.

This bike is perfect for someone who has a love for street riding. It has a handful of aftermarket parts that will keep it rolling for a lot longer than other stock bikes. The person who gets this bike should be riding at a mid-level.

Common Questions

  • Where can I buy this bike? I am an affiliate of sourcebmx.com and always recommend them. Source is rider owned and they do so much for BMX by hosting events and sponsoring riders. Did I mention they ship ANYWHERE in the world? Buy the bike here
  • Is this bike for park, dirt, or street? The Sunday EX is good for riding all 3. However, the freecoaster version has a bigger focus on street riding.
  • How much does it weigh? 25.75 lbs


Douglas Laird

Douglas is a 23-year-old BMX rider who got his first true BMX bike for his 13th birthday and has been riding nonstop for over 10 years. “Bmx has taken me too well over a hundred skateparks across multiple states and countries.” Dougsterbob.com was born to help people understand the sport that has changed my life for the better. My goal is to help you with everything BMX related. With over 200 BMX posts and counting, dougsterbob.com is quickly growing to be one of the best bmx related websites.

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