All sizes and colors

Super Yummy


For a limited time

On the Road w/ EX Loader Pannier Bundle SALE

Fun 3: Restocked!

The Cult Classic with the Extra Bend is Back in Action

The Last Batch of

Doppo Locust

Frame & Fork Set

Volummy 26 x 2.3"

26" Aint Dead Yet

Newly updated

To Smile is Back

Return of the Dirt Drop Icon

New Pocket Ts

Super Yummy Tires Restocked! - All Sizes and Colors Available

Super Yummy 26” Peanut Butter sidewall were out of stock for a while. They are back in stock and all sizes & colors available now!

By determining the volume point of the side rubber that is necessary and sufficient, and adding an anti-puncture layer instead of the thin side rubber, we maintain puncture resistance.

Aiming to create a tire that is both light and strong, we worked together with the Panaracer technical team to maximize overall lightness and suppleness while ensuring durability.

An all-round off-road tire with a tread pattern that balances lightness and running power at a high level.

The Last Batch of Doppo Locust

The last batch of Doppo Locust Frame & Fork Set is in stock. Only Large and X-Large size are available now. We've discounted them to $1600 USD until they're gone.

30% off the bulk of the SimWorks original parts when you add to your cart with a frame set...

Doppo: Continuing the tradition of Japanese Handbuilt

SimWorks has worked with a small crew of builders locally in Japan, since the inception of Doppo as a badge within SimWorks almost 10 years ago now. Located in Aichi Prefecture, as with Circles and SimWorks – our Doppo frames have been built in small numbers by lead builder Shin Hattori, and his fabrication partner Makoto Yokoyama – an original Circles employee and long tenured bike mechanic and motivated fabricator in his own right.................


Grab a SimWorks by Nitto ‘On the Road Rack’ & a single or pair of RAL EX Panniers.

For a limited time, we’re selling our ON THE ROAD rear rack from Nitto, with either a single or a pair of RAL EX LOADER panniers for $255 (single) or $310 (pair), respectively.

That’s a savings of about 25%.For our dealers- we’re happy to extend discounted pricing to you as well- with 30% off these discounted prices...

New SimWorks Heart & Arrow Pocket Ts

Artwork by Variety Shop. We had our friends Josh and Rachel from Variety Shop help us work out an update to our iconic and much loved Heart and Arrow logo, and they knocked it out of the park.

The T-shirts that we elected to use for this go-around have become somewhat of a go-to around here; Comfort Colors Pocket Ts....

Welldone Chips Bags are 30% off now!

Welldone Chips Bags are 30% off. Available in 2 sizes (13L & 30L) and a range of great colors. They'll make a fantastic addition to your On or Off bike Adventures!

These bags fall squarely in that Ultralight classification of backpacks, and have a ton of really clever features and are constructed of super lightweight, durable materials right in Nagoya, Japan. The Chips bags are probably most distinguishable for their unique opening style that offers a vertically oriented roll closure for....

【SimWorks by Nitto】To Smile Bar

Show us your ear to ear Grin – 'To Smile' Bar is back

Go further. With this in mind, To Smile Bar was created for cyclists who are seekers and wish to venture off the beaten path. A long-time SimWorks staple bar has been resurrected with a new specification....


DOPPO by SimWorks

1) Going alone.
2) Working on something independently.
3) Nothing equal and superior to everything.

RAL x POBS x Russ Pope Capsule

RAL x POBS x Russ Pope - WB Loader

Bob Scales has owned and operated a line of (mostly) men's wear since 2010- eponomously calledProduct of Bob Scales, orPOBSas it's evolved to in acronymic shorthand.

RAL x POBS x Russ Pope - Bottle

A hydration solution from the RAL x POBS x Russ Pope Collection to style out your ride or take on the go. Featuring a cast of memorable characters in Russ' signature style. A touch of class. A pinch of irreverence. 

RAL x POBS x Russ Pope - Bandana

A simple piece bringing together the efforts of RAL, created alongside our friends and collaborators Bob Scales & Russ Pope, this handsome bandana is part of a capsule collection of goods celebrating that effort and the unique and recognizable artistic style of Russ, on a textile that Bob would surely approve of. 

Other Brands (Family & Friends)

SimWorks by nitto

Factory Visit to NITTO