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The Supercaliber SLR 9.9 XX Flight Attendant is an ultra-light XC mountain bike built with top components for race day.
The Supercaliber SLR 9.9 XX Flight Attendant is an ultra-light XC mountain bike built with top components for race day.
Trek

Trek Supercaliber SLR 9.9 XX Flight Attendant Gen 2 in Navy Smoke

£12,550.00
Pre-Order

With Pre-Order, you can purchase the latest items added to our store in advance of them arriving with us.

Your Pre-Order is prioritised (at no additional charge); meaning that as soon as the product arrives with us, we can wrap it straight back up; ready for collection via Click & Collect or despatch to you — it often never even hits the stock room shelves!

Pre-Launch

With Pre-Launch, the date when we expect to receive the product ourselves is still a little too hazy to be confident in accepting Pre-Orders.

So, instead, you can submit your email address against the item you are interested in and we will email you as soon as stock arrives on the system.

Estimated Delivery & Collection Dates

Estimated Delivery & Collection Dates are given on Pre-Order and Pre-Launch products. They are for indication purposes only and can change at any time without notice.

The dates we provide are based on indications given by our suppliers. Whenever we get updated information from our suppliers we will endeavour to update the Estimated Delivery & Collection Dates provided on product pages.

We estimate this will be ready for despatch to you or collection via Click & Collect on Undetermined

Hassle free returns

RETURNS POLICY

If you'd like to exchange or return your order please include your name and order number with the return, our returns address is:

Returns
Activ Cycles
Unit 1&2 Kingfisher Business Park
Henwood
Ashford
TN24 8DG

Subject to the terms set out below we are happy to offer a refund or exchange on all goods except goods which are special orders or nutrition products, or where we have expressly advised you that there is no right to return the goods ordered (save in the event the goods are faulty) provided the goods are returned to us within 14 days of delivery to you.

If you return goods to us and request a different size or alternative product we will send it out free of charge (subject to stock availability). If you require a refund (or the replacement item is not in stock) we aim to process refunds within 2 working days of receipt of the goods. It is your responsibility to ensure that the item is returned to us safely and securely and in saleable condition.

Refunds will be processed using the same method of payment used for the original purchase. Due to the high incidence of fraud, we regret that we are unable to offer any refund without a valid receipt/delivery note.

If the product is faulty or wrong due to a mistake on our part then we will send out replacements free of charge and supply you with a prepaid returns label. For all goods returned please include a letter giving details along with a copy of the original receipt. Returned goods must be unused and with all appropriate packaging and labelling intact.

Your rights to return goods are protected under the Consumer Protection (Distance Selling) Regulations 2000 which can be found at theConsumer Protection (Distance Selling) Regulations 2000 (legislation.gov.uk).

Trek Supercaliber SLR 9.9 XX Flight Attendant Gen 2 in Navy Smoke

Season:2026

Brand:Trek

Code:58885BLU

The Supercaliber SLR 9.9 XX Flight Attendant is an ultra-light XC mountain bike built with top components for race day.

Its SLR Mountain Carbon frame is as light as it is meticulous, with a high modulus lay-up that gives you all the stiffness you crave and none of the weight. XC courses get rowdier every year, so it is equipped with a 110 mm fork and 80 mm of IsoStrut rear suspension to smooth your roll without dropping pedalling efficiency. It is all topped off with carbon wheels, a carbon cockpit and SRAM's lightest wireless direct-mount transmission.

Supercaliber's unique frame design ditches traditional suspension hardware so there is less weight, less maintenance and less lateral flex. IsoStrut connects the mainframe to the pivot-less seat stays to offer about 80 mm of rear wheel travel. This design offers a unique blend of efficiency, traction and fatigue-fighting compliance that keeps racers fresh and in control.

Supercaliber SLR is the World Cup lightweight frame. It drops grams by using a higher modulus carbon fibre lay-up that allows less material to be used, plus internal guide tubes for cable routing are skipped, minimising material and maximising weight savings.

Features:

  • IsoStrut integrated suspension gives you just enough travel to stay in control. It's fully tunable like a standard rear shock, but without the weight penalty of a full suspension bike.
  • Rockshox Flight Attendant analyses data from sensors on the fork, shock and crank to automatically adjust your suspension between Open, Pedal and Lock positions before the thought ever crosses your mind. It does the thinking for you so you can stay focused and in the zone.
  • The Supercaliber comes with a crank-based power meter that allows Flight Attendant to collect rider and trail inputs in real time. Adaptive Ride Dynamics compiles data from your previous rides to calculate personalised Effort Zones for total suspension customisation.
Technical Information
  • Mainframe
    SLR OCLV Mountain Carbon, IsoStrut, UDH, 80 mm travel
  • Fork
    RockShox SID SL Ultimate, Flight Attendant Race Day damper, Stealth DebonAir spring, tapered steerer, 44 mm offset, Boost110, 15 mm Maxle Stealth, 110 mm travel
  • Shock
    Trek IsoStrut, RockShox SIDLuxe, Flight Attendant RL3 damper
  • Front Wheel
    Bontrager Kovee RSL, OCLV Mountain Carbon, Tubeless Ready, CentreLock, Boost110, 15 mm thru axle, 29"
  • Rear Wheel
    Bontrager Kovee RSL, OCLV Mountain Carbon, Tubeless Ready, CentreLock, Boost148, 12 mm thru axle, 29"
  • Rear Skewer
    Bontrager Switch thru axle, removable lever
  • Tire
    Pirelli Scorpion XC, Tubeless-Ready, Team Edition Pro Wall, aramid bead, 120 tpi, 29x2.20", Bontrager Sainte-Anne RSL XR, Tubeless Ready, dual compound, aramid bead, 220 tpi, 29x2.40", Pirelli Scorpion XC RC, Tubeless-Ready, Team Edition Pro Wall, aramid bead, 120 tpi, 29x2.40"
  • Tire Part
    Bontrager TLR sealant, 180 ml/6 oz
  • Rim Strip
    Bontrager TLR
  • Max tyre size
    Frame: 29x2.40", Fork: See manufacturer
  • Shifter
    SRAM AXS pod
  • Rear Derailleur
    SRAM XX SL Eagle AXS, T-Type
  • Crank
    SRAM XX SL, Flight Attendant, DUB Wide, 34T alloy ring, 55 mm chainline, 170 mm length
  • Bottom Bracket
    SRAM DUB, 92 mm, PressFit
  • Cassette
    SRAM Eagle XS-1299, T-Type, 10-52, 12-speed
  • Chain
    SRAM XX Eagle, T-Type, 12-speed
  • Max. chainring size
    1x: 38T, min 30T
  • Saddle
    Aeolus RSL, carbon rails, 145 mm width
  • Seatpost
    Fox Transfer SL, 100 mm travel, internal routing, 31.6 mm
  • Integrated Bar Stem
    Bontrager RSL Integrated handlebar/stem, OCLV Carbon, 0 mm handlebar rise, 750 mm width, -13-degree stem rise, 70 mm length
  • Grips
    ESI Chunky
  • Headset
    FSA IS-2, 1-1/8" top, 1.5" bottom
  • Brake
    SRAM Motive Ultimate 4-piston hydraulic disc
  • Brake Rotor
    SRAM CentreLine X, CentreLock, round edge, 160 mm
  • Rotor size
    Max brake rotor sizes - Frame: 160 mm
  • Weight
    M - 10.28 kg / 22.67 lbs (with TLR sealant, no tubes)
  • Weight limit
    This bike has a maximum total weight limit (combined weight of bicycle, rider and cargo) of 136 kg (300 lb).
Sizing Information
Professional Opinion
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