Transition Spire GX Carbon Mountain Bike 2022 - Primer Grey

Transition Spire GX Carbon Mountain Bike 2022 - Primer Grey - Start Fitness
Transition Spire GX Carbon Mountain Bike 2022 - Primer Grey - Start Fitness
Transition Spire GX Carbon Mountain Bike 2022 - Primer Grey - Start Fitness
Transition Spire GX Carbon Mountain Bike 2022 - Primer Grey - Start Fitness

Transition Spire GX Carbon Mountain Bike 2022 - Primer Grey

Frame Size: M
  • UK Delivery: 5-7 working days*

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    Take on the biggest terrain without the penalty, long travel doesn’t have to mean single purpose. The Spire blends DH bike capability with mid-travel efficiency in such a way it’s almost two bikes in one.

    A delicately tuned pedalling and pumping platform, super supple beginning stroke sensitivity and all the travel you could ask for makes for a mind bending ride. Happily climb up to your favourite challenging descent, then cruise on over to your local flow trail and you’ll be rewarded on both ends of the spectrum.

    Don’t be fooled though, while it's no one-trick pony the Spire lives to push your limits.

    Get in-Spired.

    The Spire carbon features a full carbon frame made from premium Japanese Toray fibre with a tailored blend of 24T and 30T materials to create the right balance of frame stiffness, strength, and impact toughness. Our unique latex coated EPS moulding process allows for sharper frame lines and tighter edge radius control with maximum strength to weight ratio and less wasted material.

    All frames see protection on downtube, chainstay and seatstay. S, M and L sizes share 446mm chainstay lengths and XL and XXL share 452mm chainstay lengths. All frames are equipped with a geo adjust chip at the lower shock mount for high and low geometry settings, and 56mm/56mm press in headset cups that are compatible with reach adjust headsets when used with a dual crown fork. All frames are compatible with 27.5 rear wheels in the high geo adjust position.

    With nearly 23% progression and the most current evolution of our GiddyUp suspension kinematic, the Spire has an excellent balance of support and small bump sensitivity. Anti-squat is tuned to enhance pedalling performance and provides a platform to push against when pumping, without sacrificing a bottomless feel when needed.

    The GiddyUp suspension layout is tuned to work correctly with both air and coil rear shocks. Riders are able to add or remove volume spacers in the rear air shock to suit their individual riding style and there is plenty of bottom out control with air or coil shocks when things get rowdy. The Spire has 170mm of rear wheel travel when used with the supplied 205mm x 65mm stroke shock. It is also possible to install a shorter, 205mm x 60mm stroke shock to decrease the rear wheel travel to 160mm if you are after a shorter travel experience.

    A suggested sag range of 27 - 33% allows the rider to tune the feel of the bike; from a firm and snappy jump and slash mode, to a more supple and active full on party mode. Wherever you end up, you can focus on the trail without remotes, levers or knobs. Just grab your bike and GiddyUp.

    Frame Features:

    • Fox Float X2 Factory Kashima Rear Shock
    • FSA NO.55R/57
    • Lifetime Warranty.
    • Featuring SBG Geometry.
    • Full Carbon and Alloy Frame Options (front triangle, rear triangle & rocker).
    • High and Low Geometry Setting.
    • Size Specific Chainstays (S/M/L 446mm, XL/XXL 452mm).
    • 56/56mm Press-in Headset.
    • Equipped with SRAM UDH derailleur hanger.
    • 148mm Boost dropout spacing.
    • Stock rear travel 170mm with 65mm Stroke Shock.
    • Optional 160mm rear travel with 60mm stroke shock.
    • 29" and 27.5" rear tyre clearance up to 2.6.
    • EnduroMax sealed bearings with bearings shields on main pivot.
    • Threaded bottom bracket.
    • Moulded rubber chainstay, seatstay and downtube protection.
    • External rear brake cable routing.
    • Carbon frame has full guided dropper and rear derailleur cable routing in DT and CS.
    • Alloy frame has internal dropper and rear derailleur cable routing in DT and CS.
    • Water bottle storage inside front triangle.
    • Accessory mount on underside of top tube.


    • Full Carbon Frame
    • RockShox ZEB Ultimate 29 170mm Travel
    • RockShox Super Deluxe Ultimate Air
    • SRAM GX Eagle 12sp
    • SRAM Code RSC Hydraulic Disc Brakes
    • OneUp Dropper Post
    • Stans Flow S1 Wheels



    Product Code
    Brand Transition
    Gender Unisex
    Model Year 2022
    Frame Full Carbon Frame
    Fork RockShox ZEB Ultimate 29 170mm Travel/44mm Offset
    Rear Shock RockShox Super Deluxe Ultimate Air (170mm Travel/205x65mm)
    Shifters SRAM GX Eagle
    Derailleur (Rear) SRAM GX Eagle
    Brakes SRAM Code RSC
    Crankset SRAM GX Alloy DUB (30t/165mm)
    Cassette SRAM XG 1275 (10-52t)
    Chain SRAM GX Eagle
    Wheelset Stans Flow S1 w/ Stans Neo Durasync Hubs
    Rim Type Tubeless
    Handlebar ANVL Mandrel Alloy
    Stem ANVL Swage (40mm)
    Headset FSA NO.55R/57
    Saddle ANVL Forge Cromo or WTB Silverado
    Seatpost OneUp Dropper Post
    Pedal Pedals not included with this bike but can be purchase separately here
    Wheel Size 29 inch
    Number of Gears 12

    Ready to ride

    Every bike from Start Fitness is fully checked & assembled before despatch and will arrive, almost, ready to ride. Each bike is assembled by one of our CyTech accredited mechanics and then packed into one of our custom boxes.
    This process has a lead time of 5-7 working days. Unfortunately during peak times this may be slightly delayed. We will however, aim to despatch your bike as quickly as possible. Minimal assembly, with basic tools, is required before you can ride. Assembly tools are not usually included. Please note: Some bikes are not supplied with pedals. Manufacturers don’t know if you want flat or clipless pedals - rather than send the bike with the wrong type, they leave the choice for you to make.

    Making sure you are home

    Once fully checked and boxed, we will contact you to book a delivery date. Our bikes are despatched on a next working day service (excludes weekends & bank holidays) for UK mainland orders, or a two day service to Northern Ireland and outlying Scottish areas. European bike deliveries usually take approximately one week.  

    Taking Delivery

    Any mechanical or cosmetic issues need to be reported to us within one week of the delivery date. If you do not plan on using the bike straight away, we advise that you remove it from the box and check it over ASAP as we cannot be responsible for any reported issues (other than standard warranty issues) later than one week from the date that the bicycle was delivered.  

    First Service

    After a few weeks of riding (we recommend around 6-8 weeks, regardless of how much the bike has been used), a new bike will need a service to make final adjustments and to re-check all nuts and bolts. This is necessary as the bike goes through a ‘bedding in’ phase, after which, final adjustment may be necessary. We recommend that this is carried out by a CyTech qualified mechanic.

    It is important to have these checks carried out to prevent any avoidable problems which may not be covered by warranty and to ensure the smooth running of your bicycle. If you’re local to us, we’re able to offer this first service free of charge* at our Newcastle store (NE1 6JE). You’ll just need to call our workshop on 0191 917 3825 to book your service in, and don’t forget to bring your proof of purchase when you drop the bike off with us.

    If you’ve had the bike delivered, it will be your responsibility to ensure a first service is carried out at a trusted bike shop local to you, preferably by a Cytech certified mechanic. Start Fitness are unfortunately not able to cover any costs associated with this service if carried out by another store.

    *Please note that this complimentary check-over does not include any labour to replace worn parts or to fit new accessories. All bikes should be delivered to us in a clean and serviceable condition, or a £15 cleaning charge will be payable.  

    Bike Servicing

    Bicycles need to be serviced regularly, as a guideline we would advise on at least one full service per year and/or a standard service twice a year. If the bike is used regularly in adverse conditions, more regular servicing may be required.

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