BMX cranks Archives

Primo – Superbite Cranks

Are you thinking about picking up a new set of BMX Cranks? Here’s a look at the new Connor Keating signature Superbite Cranks from Primo! The Superbite cranks are made from heat-treated 4130 chromoly tubing with a rounded top and flat sides for crank arm grinds and wrapped pedal and spindle bosses for increased strength. The cranks utilize a hollow 22mm, 48-spline spindle with 8mm hex head bolts to keep it all tight. There is a 22mm Primo Mid bottom bracket included with these as well. These cranks are beefy and built to take a beating out in the streets!

You can pick up the Primo Superbite cranks in Black and Chrome with 165 and 170mm lengths through BMX shops and mail-orders that carry Primo worldwide for $177.99 now!

What do you think of these cranks? Do you have any questions? Let us know in the comments below!

Not quite what you had in mind? Check out more BMX Cranks!

Premium BMX – Blake Peters 2-Piece Cranks Promo

Kink BMX – Nathan Williams and the Pillar Cranks

Profile Racing – From The Dungeon: The First 19mm, 48-Spline Spindle

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Profile Racing gives us a look at how they made the original 19mm, 48-spline spindles…

It’s that time or another round of From The Dungeon from Profile Racing. This time around, Jim Alley dug into the Dungeon to find the original tool they used to make the the 48-spline threads on the 19mm spindles. This design has become a pretty standard design in many BMX cranks rom many brands, so it’s pretty wild to see how it all started. Take a look!

“In celebration of Profile Racing’s 50th anniversary, owner and founder, Jim Alley, invites us into the company’s original Florida location where some sections of this dark and dusty industrial cave have been sealed off since 2004.
Over time, this building (appropriately named “The Dungeon” by employees) has become a time capsule; a host to historical artifacts capturing Profile’s legacy in both the automotive and bicycle industry.
Join us on this multi-episode series as we press record and let Jim imbue his wealth of knowledge on conjured pieces of the past.

This is From the Dungeon.

Welcome.
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Episode #3: The inception of the first 19mm, 48 splined crank spindle.

On episode #3 of From the Dungeon, Jim Alley gives us insight on the manufacturing (and the tools involved) of the FIRST 19mm, 48 splined crank axle (a design stemming from Profile Racing’s steering gears Circa 1980/1981).

Episode Timeline:

.45 — Found plasma cut table top from a past interbike.
1:40 — Found! The original dividing head tool.
1:46 — Preview of one of the original, 19mm 48 splined Profile spindles.
1:54 — How the dividing head worked.
2:17 — How the 48 serations were made on the spindle.
2:48 — Introduction of the cutting tool.
3:10 — Explanation of the lathe work for facing and drilling.
4:07 — The ORIGINAL 19mm 48 splined spindle.
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You can check out the complete history of Profile Racing as we cover each of it’s 50 years, weekly, over the course of 2018.
Check it out at www.profileracing.com

Profile Racing – From The Dungeon: Evolution and the Box Crank

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Profile Racing’s Owner, Jim Alley, talks history while in the Dungeon! This time around he talks about the first production BMX cranks they made!

The From The Dungeon series from Profile Racing has arrived. This time around Proile’s owner Jim Alley digs up some of the first Box crank arm prototypes and discusses what went into making the first cranks from Profile Racing that has turned into the classic cranks you can find on many, many, many BMX bikes around the world. Take a look! This is super interesting if you have ever ran a pair of Profile cranks or you just love BMX history.

This is From the Dungeon.

Welcome.
——————————————-
Episode #2: Progressive History of the Profile Racing Box Crank.

On episode #2 of From the Dungeon, Jim Alley gives us insight on the evolution of the Iconic Profile Racing Box Crank, Circa 1980/1981.
From the rudimentary original prototype, to the intricate and time consuming production model.

Episode Timeline:

.37 — Eureka! Actual first prototype re-discovered.

1:46 — Details on the second prototype.

2:52 — Third prototype leading into Box Crank production.

4:13 — Very rare version of the Profile Tapered Square Box Crank.

4:52 — Progression Timeline of the Profile Box Crank
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You can check out the complete history of Profile Racing as we cover each of it’s 50 years, weekly, over the course of 2018.
Check it out at www.profileracing.com”

Mutant Bikes – Bionic Cranks with the Spliner System Explained

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Mutant Bikes put together a video showing you how their Bionic Cranks with the Spliner system works…

Thinking about getting a new set of BMX Cranks? Here’s a video showing you how the Bionic Cranks from Mutant Bikes works. These cranks use Mutant’s patented Spliner System that uses a split axle design that has a spacer with threads inside the bottom bracket. The system uses compression from a long bolt to pull both sides into the threaded spacer for a strong, tight fit that spins smoothly. This video shows how the cranks go together and how the Spiner System works. It’s a unique concept, but it looks real clean and strong.

“MFOBMX Company developed a new crank system, were the axle is divided in half and becomes an integral part of each arm, the tightening is made inside with just one 8mm allen bolt and a Spliner® Boss with 48 spline that also works as a spacer between the bearings. SPLINER® is a patented system, tested several times during years and approved. Thicker arms than regular cranks and shorter axle to prevent twisting, also the crank shape, was designed to don’t hit the ankles.

Filmed and edited by João Soares” – Mutant Bikes

How To Use A Crank Arm Puller

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It’s Tuesday, so it’s time for Brant Moore to drop a new tech tip. This time around he shows you how to use a crank arm puller on BMX cranks!

If you have rode BMX for a while, there’s a very good chance you have had to take your cranks off at some point, or install a pair of cranks on a new frame. While, installing a pair of cranks isn’t exactly rocket appliances (Trailer Park Boys, anyone?), it can be a little tricky and using the right tools for the job make life a lot easier. If you have ever had a pair of 3-piece cranks, there’s a good chance you have either used, or have seen a Crank Arm Puller. Now, the tool isn’t completely necessary, but it exists because it does make things a hell of a lot easier when it comes to installing or removing BMX cranks. One reason many people don’t use them is because they don’t know how it works. Brant Moore put together this detailed video showing you just how to use a crank arm puller to remove or install a set of BMX cranks. Hit play, take it all in and then remember to use the right tools for the job!

“A crank puller is a tool that can make putting on and taking off bmx/bicycle 3 piece cranks a quick and easy task. Especially compared to the alternative of using other tools, aka the wrong tools for the job.

In this video I demonstrate how to use a crank puller to install and remove bmx 3 piece cranks.” – Brant Moore

Does BMX Crank Arm Length Matter?

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Does crank arm length on a BMX bike matter? It does! Here’s a video where Brant Moore discusses it…

It’s that time of the week for Brant Moore to do a little tech tip for you guys. This time around he is looking at how crank arm length has an affect on a BMX bike. Brant talks about the different sizes, the difference between longer cranks and shorter cranks and much more. This is great info if you’re considering getting new cranks and you aren’t quite sure what size to go with. Hit play and take it all in!

“There are many different crank lengths in the world of bicycles.
The question is, does crank length matter?

In this week’s Tuesday Tip, we answer that question through the help of some insight from Profile Racing as well as a scientific study of power output in varying crank lengths.”