Romp Supply

ATOMs (Set of Two)


ATOMs (Set of Two)
ATOMs (Set of Two) ATOMs (Set of Two) ATOMs (Set of Two) ATOMs (Set of Two) ATOMs (Set of Two) ATOMs (Set of Two) ATOMs (Set of Two) ATOMs (Set of Two) ATOMs (Set of Two) ATOMs (Set of Two)
Optional Add-On:

Introducing the ATOMs, beautifully crafted all-metal pulleys using aerospace-grade 7075-T6 aluminum. Get ready to bring a whole new level of performance to your ride. Pair the ATOMs with the new Boosted 105s for the ultimate upgrade!

  • Superior Durability and Reliability: The high-performance grade aluminum of the ATOMs results in extreme resistantance to stress and damage. Say goodbye to chipped pulley teeth and hello to extended belt lifespan. 
  • Unmatched Strength-to-Weight Ratio: The ATOMs offer an unrivaled blend of strength and performance. 7075-T6 is truly in a class of its own, offering over 2X the tensile strength and 1.5X the shear strength of the common 6061 aluminum.The T6 temper treatment is the icing on the cake, yielding the peak strength of 7075 alloy. Without a doubt, the ATOMs are THE strongest aluminum pulleys on the market. 
  • Solid Piece Design: The ATOMs are CNC machined from a single block of 7075-T6 aluminum, resulting in uncompromising structural integrity.
  • Precisely Engineered: All interfacing aspects of the ATOMs are precisely measured and machined to ensure proper fits between components, such as our renown ROMP belts, wheel hubs, and stock pulley bearings. No slop here.
  • Minimized Rotational Weight: The hallowed-out design coupled with the the 7075-T6 aluminum results in the lowest rotational mass for metal pulleys. In terms of performance, lower rotational weight means faster acceleration and braking. 
  • Beautifully Finished: The ATOMs are smoothed and anodized to provide additional resistance to wear and corrosion. So beautiful, you'll find it hard to mount these on your board!

Please Note: If self-supplying and installing pulley bearings, we STRONGLY recommend applying retaining compound to eliminate movement of the bearing outer race against the inner barrel, which can lead to unwanted noise and wear. 


The ATOMs are 56T pulleys designed as direct replacements for the Gen2 and Gen3 Boosted Board pulleys. They will fit any longboard wheel with centerset Kegel Cores. These pulleys maintain the stock gear ratio of Boosted Boards. We recommend only pairing the ATOMs with non-Boosted brand wheels ranging from 80-90mm in diameter. The ATOM's ARE compatible with the new Boosted 105s!

To make swapping pulleys even more convenient, the ATOMs can be ordered with with pre-installed pulley bearings and pre-applied Loctite retaining compound, ensuring the best fit and eliminating unwanted noise and wear on the inner barrel surface. 

About Blemished Products: Blemished ATOMs have very minor cosmetic defects only visible upon close inspection and function just as well as a brand new set. Supplies are limited!

What's Included: Set of Two (2) ATOMs in Racing Red (Color)

Optional: Set of Two (2) Pre-Installed Pulley Bearings with Loctite


  • Boosted Boards Gen2 (V2)
  • Boosted Boards Gen3 (Stealth, Plus, Mini S, Mini X)

ATOMs (Set of Two)

Customer Reviews

Based on 11 reviews
Saves your belts!

I've had these since they first came out and I've been riding them for about 750 miles. Since then, I had to replace my ROMP belts ~2 times. The only problem is that you need to have both Loctite red and a primer for the bearings to effectively bind to the pulley.


Super durable and well machined.


ATOMs (Set of Two)


ATOMs (Set of Two)

Go baby go

Really fine machining. Don't expect the paint to last for too long though.
The fitting is almost too perfect! :D With Caguama wheels on the boosted mini, the clearance was so little close to the motor casings that I had to add another washer. But they are much easier to press in the wheels than the stock plastic ones.
But all in all very happy with those now. I can feel the transmission being absolutely flawless and it somehow feels more responsive.