Pipedream Sirius gets a complete redesign for 2017

We fondle the updated British-designed hardtail

Pipedream recently sent us in its completely updated Sirius hardtail, which has been redesigned from the ground up for 2017.

Pipedream's redesigned Sirius hardtail
Pipedream's redesigned Sirius hardtail

At first glance, the 4130 frameset looks like a pretty standard affair: skinny tubed, long, slack and low. But on closer inspection you begin to notice a lot of nice details throughout.

The bottom bracket junction and the custom machined chainstay yoke is undoubtedly the star of the show, with the widely-spaced rear end easily accommodating a 2.8” tyre with plenty of clearance leftover for mud. The bike will also gladly run 29x2.4” tyres should you wish to run the bike with wagon sized wheels.

A closer look at that chainstay yoke, which can clearly be seen wrapping around the bottom bracket shell
A closer look at that chainstay yoke, which can clearly be seen wrapping around the bottom bracket shell

The yoke extends forward, fully wrapping around the bottom bracket shell. This creates a much stronger join compared to simply welding the yoke onto the back of the shell.

The sliding dropouts give singlespeed options for the future
The sliding dropouts give singlespeed options for the future

Out back, sliding dropouts are laced together with a 142x12mm thru-axle, so you can turn the bike into a singlespeed hurt machine should you so wish.

Numbers wise, the 67-degree head angle and 74-degree seat tube are par for the course for a modern, rowdy trail hardtail as is the chunky 44mm headtube.

The frame can also accommodate stealth routed droppers — ours came with a regular external one
The frame can also accommodate stealth routed droppers — ours came with a regular external one

Like many modern bikes, the Sirius is 1x specific with no cable routing for a front mech. There is a nicely welded in port on the seat tube for stealth routed droppers should you decide to build the bike with one.

Pipedream sent us through the bike in a handsome “Charcoal” paint job, but we’re looking forward to seeing the very #enduro sounding “Toxic Lemon” in the flesh.

The hub boasts 102 points of engagement — clicktastic
The hub boasts 102 points of engagement — clicktastic

As a bike that is designed to be fun it made sense that the component selection should reflect this, so Pipedream specced the Sirius with Funn components throughout — a continuation of its long term collaboration with the component manufacturer.

Decked out in full Funn regalia, including the brand's new UpDown dropper seatpost, the bike looks very cool in its matchy-matchy grey and orange livery.

Our test bike came with the new Zelvy plus-sized rims laced to Funn Fantom hubs
Our test bike came with the new Zelvy plus-sized rims laced to Funn Fantom hubs

The eagle-eyed will note that the rims are a brand new plus sized offering from Australian carbon specialists, Zelvy. The 36mm wide (internal) rims give the 2.8” Maxxis Ikon+ tyres a healthy, square profile, which should make for a stable and surefooted ride. Laced up to Funn Fantom hubs, which offer a rather impressive 102 points of engagement, these wheels should feel pretty spritely out on the trail.

Given that the bike is such a departure from the original Sirius, we’re looking forward to taking this skinny tubed treat out to the trails to see how it performs.

Jack Luke

Staff Writer, UK
Jack has been riding and fettling with bikes for his whole life. Always in search of the hippest new niche in cycling, Jack is a self-confessed gravel dork and thinks nothing of bivouacking on a beach after work. Also fond of cup and cone bearings, skids and tan wall tyres.
  • Discipline: Long days in the saddle by either road or mountain bike
  • Preferred Terrain: Happiest when on a rural road by the coast or crossing a remote mountain pass. Also partial to a cheeky gravel adventure or an arduous hike-a-bike.
  • Current Bikes: Custom Genesis Croix de Fer all road adventure wagon, Niner EMD 9.
  • Dream Bike: A rigid 44 Bikes Marauder, all black please.
  • Beer of Choice: Caesar Augustus
  • Location: Bristol, UK

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