Staff Bike Checks | Tor's Transition Spire

Transition Spire custom build on a red shipping container with sram gx axs fox float x2 fox 38 performance series elite schwalbe tires and oneup components

    We hope you’re not tired of raw aluminum bike builds from the staff here at The Lost Co, because we’ve got another one coming at you! This is my new Transition Spire, decked out with a bunch of parts we carry here at the shop.

    We’ll start with the heart of the build, the 2022 Transition Spire frameset. My last bike was an S3 2019 Stumpjumper Evo, which has a very similar wheelbase but with a longer front center and a shorter rear center. My hope is that this change will move my center of gravity farther forward between the wheels for more front end grip. The frame came with a Fox Float X2 Factory rear shock, which has proven to be an excellent rear shock. I paired the Fox shock with a 170mm Fox 38 Performance Elite, Fox’s burliest single crown fork, which is quite the beast!

    For my cockpit I’ve gone with the OneUp Components Carbon Handlebars cut down to my preferred width of 770mm attached to a 35mm Deity Copperhead stem. These bars have an interesting layup design with an oval structure right by the stem that is said to increase vertical compliance while maintaining steering stiffness. Mounted to the bars are Hayes Dominion A4 brakes, a SRAM GX AXS Shifter, and a One Up Dropper Remote. This is my first time with robots running the shifting department as well as Hayes brakes.

      The SRAM AXS experience has been fantastic, and my favorite part of it is how light the shifter action is. It’s even easier to actuate than a normal shifter with a brand new cable and housing, which before this was the pinnacle of shifting performance.

Frame: Transition Spire - Medium

Fork: Fox 38 Performance Elite

- 170mm

Shock: Fox Float X2 Factory - 205x65

Crankset: SRAM GX - 165mm

Chainring: SRAM GX - 32t

Derailleur: SRAM GX AXS

Shifter: SRAM GX AXS

Chain: SRAM GX

Cassette: SRAM GX 10-52

Pedals: Crankbrother Mallet DH

Hubs: Industry Nine 1/1

Rims: DT-Swiss EX511

Tires: Schwalbe Big Betty 2.4

Saddle: Chromag Trailmaster

Seatpost: OneUp Components

Dropper V2 - 210mm

Dropper Lever: OneUp Dropper Post

Remote

Bars: OneUp Components Carbon

Handlebar - 770mm

Stem: Deity Copperhead 35mm

Grips: Renthal Traction Ultra-Tacky

Brakes: Hayes Dominion A4

Rotors: SRAM HS2 - 220mm

Accessories:

-CushCore Pro in the rear tire

-Jank Components Housing Homies

    The Hayes Dominion A4 brakes paired with the 220mm SRAM HS2 rotors have been a very positive experience. I’ve run Code RSC's and Shimano Saints in the past and the A4's brakes have provided higher performance in almost every department. The initial bite is not quite as potent as the Shimano’s, but they have such deep reserves of power that I never feel like I’m pushing them to their limit. A somewhat unnecessary, but very nice touch, is how light of a throw the levers have. It takes almost no effort to begin to engage the brakes, which I can’t say that I notice very much on the trails compared to another lever, but it sure beats a sticky lever.

    I’ll be rolling on the DT-Swiss workhorse enduro rim, the EX 511, laced to some Industry Nine 1/1 Hubs. Both the front and rear rims are wrapped in CushCore Pro as well as Schwalbe Big Betty tires in the Super Gravity casing and Soft compound. The EX 511 rim is one of the absolute best bang for your buck rims on the market, and is known for its bomb proof reliability. Unfortunately, I have already put a small ding in the rear rim, but it was pretty warranted after coming up short on a sizeable double. The 1/1 hubs are a great way to get some of that Industry Nine quality without having to fork up all that cash for Hydras, and I really enjoy the high engagement on technical climbs paired with the quiet yet constant buzz on the descents.

    This is my first experience with any Schwalbe tires and so far they’ve been great. The sidewall is plenty supportive, especially with the CushCore Pros installed, and the traction has been immense. I’ve only ridden them in the best conditions so far, so it's a bit hard to say how they’ll fare once I’m on something besides hero dirt.

    Finally, I’m running the OneUp Dropper V2 with 210mm of drop, and so far it hasn’t missed a beat. I’ve got it paired with their dropper lever and the action of it feels very nice but I wish it had a bit wider range of adjustability.

    This bike has definitely been built with reliability and downhill performance in mind, and unfortunately that doesn’t mean good things for the weight of it. It comes in at a hefty 39.5 lbs with pedals and no waterbottle. It’s been noticeable on the climbs but it certainly won’t be stopping me from putting in some all day pedal missions!

detail of fox float 38 performance series elite mtb fork
detail of fox float 38 performance series elite mtb fork damper adjustments
detail image of fox float x2 factory rear mtb shock
oneup components dropper post v2 with a sky background
detail photo of transition spire headbadge and deity copperhead stem

A Fox Float X2 Factory rear shock, Fox 38 Performance Elite, and OneUp Dropper V2

detail image of sram gx axs derailleur with sram gx eagle cassette
detail image of sram gx axs controller
detail of deity copperhead stem with oneup components carbon handlebar

This is my first time with robots running the shifting department, and I’ve got a full SRAM GX AXS drivetrain.

detail image of deity copperhead stem with oneup components carbon handlebar
hayes dominion a4 brake levers and sram gx axs controller on a custom build transition spire
detail of hayes dominion hayes a4 mountain bike brakes and sram hs2 rotors

Something very new to me is the Hayes Dominion A4 brakes paired with the 220mm SRAM HS2 rotors. I’ve run Code RSCs and Shimano Saints in the past and these brakes have provided higher performance in almost every department.

schwalbe big betty tire on a red background
dt swiss ex 511 rims laced to industry nine 1/1 hubs
schwalbe big betty tire on a red background
dt swiss ex 511 rims laced to industry nine 1/1 hubs and sram gx chain
schwalbe big betty tire on a red background

DT Swiss’ workhorse enduro rim, the EX 511 laced to some Industry Nine 1/1 Hubs. Both ends are wrapped in CushCore Pro and Schwalbe Big Betty tires in the Super Gravity casing and soft compound

Transition Spire custom build on a red shipping container with sram gx axs fox float x2 fox 38 performance series elite schwalbe tires and oneup components
chromag trailmaster saddle  on a oneup dropper post v2 seatpost on a red background

This bike has definitely been built with reliability and downhill performance in mind, and unfortunately that doesn’t mean good things for the weight of it. It comes in at a hefty 39.5 lbs with pedals and no waterbottle

    That’s about it for now! If you’re interested in picking up any of these parts, we carry everything that I’ve mentioned here at The Lost Co.

Check out the website or give us a call if you have any questions!

Got questions?

Feel free to shoot us an email or give us a call!

360-306-8827

sales@thelostco.com


ABOUT THE RIDER/WRITER

NAME AGE HEIGHT LOCATE

Tor Weiland

24

5'11"

Bellingham, WA

Current Bikes: Transition Spire

Bike Size: Medium

Favorite Trails: Oriental Express, Galbraith

About Me: