Category Archives: Bike Checks

BMX Groms Sunday Primer 16″ and 18″ BMX Bike Reviews


Sunday Primer 16 and 18 inch BMX Bike Review

Nathan Halahan cranks a turndown on the 16" Sunday Primer BMX

Nathan Halahan cranks a turndown on the 16″ Sunday Primer BMX

While scanning through the long list of Google search terms which brought people to the other day, this one caught my eye: “how old do u half to be to be able to ride bmx bike”? The answer is, if you are old enough to type a search phrase into Google, you’re definitely old enough to ride BMX, you just need the right size bike.  Sunday is a company that is taking creating bikes for smaller riders seriously, because they understand how important it is. So many kids fail at BMX, when their parents buy them a full size 20” bike that they can grow into. From frame geometry to components, they’ve thought of everything and Sunday has kept the cost down.

Mike Halahan is one of the most hardcore BMX Dad’s out there. The two Halahan boys, Lukas and Nathan show what 8 and 10 year olds can do on a BMX, when the bike is a size they can handle. The following independent review of the Sunday Primer 16” and 18” BMX bikes couldn’t have been done by anyone better. Thanks Mike Halahan!

Sunday Primer 16 & 18

Lukas Halahan tweaks a t-bog on the Sunday Primer 18" BMX in the Woods jump line at the wheelmill.

Lukas Halahan tweaks a t-bog on the Sunday Primer 18″ BMX in the Woods jump line at the wheelmill.

Review by Mike, Lukas and Nathan Halahan. Pictures by George Jenkins.

In 2014 a number of BMX brands dropped one or both of their 16 and 18 inch offerings. Yet, there seems to be an influx of youth entering the BMX freestyle market. This perplexed me. Jim Cielencki of Sunday Bikes is doing the opposite. This delights me.

I was fortunate to meet up with Jim C. at The Wheel Mill in Pittsburgh this past winter. We discussed youth, BMX, and Sunday Bikes. Specifically the Primer 16 and 18 inch complete models. Jim graciously hooked up my sons Nathan and Lukas with 16 and 18 inch Primers to test then give away to some lucky kiddos at their inaugural Next Generation Youth Jam.

The bikes showed up well packaged, blemish free and built up easily. The boys were stoked on the colors, Safety Green for the 16 and Ocean Blue for the 18. I also liked the look of the bikes. I noticed right away the concept proportional geometry that Jim and I discussed the month prior. The rider areas looked roomy, the rear ends nice and short, and the bar height and width just right.

The Primers are spec’d well with Sunday OEM kit. I would like to see a top load stem on the 18 but other than that I wouldn’t change a thing if we were to run them as completes. The bikes weighed in at 19.4 and 24.2 lbs on our shop scale. For sub $400 completes you won’t find much better than that. Most dads (and mums too) would likely swap some parts out for their higher end favorites and I see no problem with getting the weights down closer to the 17 and 19 lb weights of the boys current set ups. I would also like to see full chromoly frame and forks but understand the cost effectiveness with the mostly Hi-tensile steel used.

Sunday Primer 16" BMX Bike

Sunday Primer 16″ BMX Bike

The Sunday Primer 18" BMX Bike

The Sunday Primer 18″ BMX Bike

Next stop was The Wheel Mill to cut the boys loose. Both Nathan and Lukas appeared comfortable straight away. Lukas quickly pulled me to the mini ramp room excited to show me the ease at which he could manual across the deck and around the tree trunk feature. Nathan had me follow him to the park room to show me a crisp 540 transfer. With the rear ends on the Primer 16 and 18 being 1.5 inches shorter than their current bikes this did not surprise me. But, with these short rear ends, I really wanted to see how the boys jumped the big line in the woods jump room. It wasn’t long before my curiosity was satisfied. Although the boys were not boosting and tricking the jumps quite as they normally do, the bikes appeared to handle very well. Nathan did say he felt a little sketchy on the big hip, wall ride, and step down but had no qualms with the smaller trick box. Lukas said he didn’t feel quite as stable at first but felt comfortable by the sessions end. I would like to see (with the short rear ends) the boys roast these bikes at their local trail spot where a different set of skills and more stable platform is required. There is good reason why the adult version trail specific frames tend to have slightly longer chain stays than their street and park counterparts.

Nathan and Lukas Halahan getting tech on the Sunday Primer Bikes. The frame geometry makes a huge difference here, which younger BMX riders will really love.

Nathan and Lukas Halahan getting tech on the Sunday Primer Bikes. The frame geometry makes a huge difference here, which younger BMX riders will really love.

Overall the Primer 16 and 18 get thumbs up and smiles from Nathan, Lukas, and I. And, Jim C. gets high fives from all of us. Jim is stoked on getting right for the youth of BMX. His approach to proportionally designed geometry at Sunday Bikes is setting a new standard.

Anthony Duffy 18 Inch BSD Passenger BMX Bike Check


Anthony Duffy bmx 18 inch bsd passenger Bike CheckMy name is Anthony Duffy and I am 13 years old. I come from a town called BannockBurn in Stirling, Scotland. My first bike was a 20″ which I rode for months, then i was given a chance to test out the very first 18″ Trailorpark and I am now riding the BSD 18″ version of Kriss Kyle’s signature frame, ‘The Passenger’ in trans gold.

Forks: black BSD 18″ ghetto forks
Bars: black BSD highlander 8.5″x 29″
Stem: BSD race stem v2 top loader.
Headset: BSD integrated
Grips: ODI
Seat Post: BSD black blitzed post Pivotal
Seat: BSD red Beverage.
Anthony Duffy bmx 18 inch bsd passenger Bike Check DetailsCranks: black BSD substance cranks 165mm.
Sprocket: black BSD superlite 28t.
Chain: BSD 1991 halflink chain black
Wheels: My wheels are custom built alienation 18″ rims in black, BSD spokes, a black left hand drive BSD back street pro hub on the back wheel and a black BSD front street hub on the front wheel.
Tires: Duo tyres.
Pegs: Kriss kyle signature ‘unit peg’.
Brakes: I ride brakeless.
Pedals: Shadow pedals.

Anthony Duffy Suicide No Hander

Anthony Duffy Suicide No Hander

Anthony Duffy and Kriss Kyle

Anthony Duffy and Kriss Kyle

Anthony Duffy 18" BMX Bike Check Crankset Detail BSD

Anthony Duffy’s 18″ BSD Passenger Crankset Detail

Anthony Duffy 18" BMX Bike Check Seat Detail

Love the BSD red Beverage seat with the Transparent gold frame.

Jadin Covert BMX Bike Check


Jaden Covert BMX Haro Bike CheckJadin just moved up to a 20″ BMX, so it is a really good time, to check out his ride, see how he dialed it in and find out how he made the transition. Read up all you 18″ shredders!

Jadin Covert BMX Canon Ball Air

Photo: Stephen Smith

Name: Jadin Covert
Age: 14 yrs old
Height: 4’11” I’m too short haha
Weight: Around 80 pounds
Location: Clairemont San Diego California
Sponsors: I ride for Haro Bikes.
Which size BMX did you start riding on? I started on a 16″ redline.
When did you move up to a 20″ BMX and was the adjustment difficult? I just recently switched to a 20″ about a month ago. The switch is a little wierd at first but the bikes go so much faster and higher its a fun transition up to a 20″ for me.
What made you decide to make the switch to a 20″? I just thought it was time with my age and riding ability.
Do you have any advice for kids choosing a bike to start BMX? I would say start on a twenty to feel if u actually do need a smaller bike you will definitely know.
Frame / Top Tube Length: 20″ flat
Why did you choose that frame? Its one of the new frames that Haro started producing its awesome!
Fork: I have the new Haro Lineage.
Bars / Size: Bars are also the new Haro Lineage chrome the bars are 8.5 rise.
Stem: I have a Haro Lineage front load stem.
Grips: I have the ODI softie grips.
Bar ends: I have some white plastic Odyssey bar ends.
Seatpost: I have a carbon fiber Haro race seatpost.
Seat: I have a thick Haro Seat.
Cranks (and crank arm length): I have the Haro Lineage cranks there 170mm.
Sprocket (and number of teeth): I have the chrome Haro Lineage 28 tooth sprocket.
Chain: I have the Shadow half link in black.
Front Tire: I have the Haro La Mesa front tire 2.4’s.
Front Wheel: I have the blue and black Premium Samsara rim set.
Rear Tire: Same back tire Haro La Mesa 2.4
Rear Wheel: Also in the back the Premium Samsara 9 tooth driver in the back.
Pedals: I have the Odyssey JC PC pedals in black.
Hub Guard: I don’t run hub guards.
Pegs: I have a plastic in the front metal in the back but i dont know what kind they are hahaha
Jadin Covert BMX Bike Check DetailsBrakes: I dont run brakes.
Any other special details or stories about your bike or parts? Some cool stuff about my bike uhh my frame is one of a kind so is the stem well the color at least i think its preety awesome.
What do you think of BMX Groms? Bmx groms is new to me was introduced to it and think it is a good way for kids to get more influenced riding bikes seeing the kids all over the world killin it on bmx groms!

JT Cunningham 18 Inch Bike Check


JT Cunningham 10 year old BMX RiderJT Cunningham was one of the shredders on the recent UK Lil Pros UK BMX tour. He rides a custom 18 inch BMX and we caught up with him to get all the details of his ride to share it with all the BMX Groms out there. JT has spent a lot of time dialing in his bike and if you’re around the same age, you’ll find this information really useful.

Name: JT Cunningham
Age: 10
Height: 1m 38 / 4.52 ft
Weight: 29kg
Location: Horsham England
Sponsors: Kid Dynamite Apparel
Which size BMX did you start riding on: 18 inch
Do you have any advice for kids choosing a bike to start BMX? Choose a bike that has a light frame and take time to pick right bike.
When do you think you will move up to a 20″ BMX? If I grow quickly then hopefully in 2 years!!
Frame / Size: S&M atf Frame 18.5′ tt
Fork: DK Alpha 18′ forks
Bars / Size: Deluxe bars 8’0 rise 26 width, my Dad cut them down to 26 wide as they come in 28 wide.
Stem: Sunday day Freeze ToploadJT Cunningham 18 inch custom SandM BMX Bike
Grips: Totalbmx
Bar ends: Totalbmx
Headset: Premium Headset
Seat Clamp: Built in
Seatpost: Salt post
Seat: Totalbmx
Cranks: Oddssey Thunderbolt, 175mm
Sprocket: Proper Magnalite, 25T
Chain: Shadow Half link silver
Front Tire: Fit 18′  2.25
Front Wheel: Salt 18′ double walled
Rear Tire: Fit 18′ 2.25
Rear Wheel: Salt double walled
Pedals: Eclat
Pegs: Demolition plastic pegs
Brakes: N/A
Brake Lever: N/A
JT Cunningham 18 inch BMX Close Ups
What do you think of BMX Groms? I like BMX Groms because they put on all videos of young shredders and I think it is good for everyone to see the progression in BMX from a young age!!!

Skip to toolbar