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The Trek Supercaliber SLR 9.9 Flight Attendant Mountain Bike is an ultralight XC mountain bike built with the top components for race day.
The Trek Supercaliber SLR 9.9 Flight Attendant Mountain Bike is an ultralight XC mountain bike built with the top components for race day.
Trek

Trek Supercaliber SLR 9.9 Flight Attendant Mountain Bike 2025 Red Smoke Drizzle

£11,900.00
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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
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When you purchase this item, you will earn of rewards points to spend on your next purchase from us. You can spend your Rewards balance in-store & online.

Not happy with your purchase? Send it back to us or return in any of our stores and we will give you a full refund or exchange!

Returns

In the unlikely event that you are dissatisfied with your purchase please feel free to return your goods within 60 days of the purchase date for a full exchange or refund. Any item (excluding food and underwear) can be returned to us for any reason provided it is returned in ‘showroom condition’, with its original packaging, tags and a valid receipt/delivery note.

Simply box up your items for return, include a cover note with the word REFUND or EXCHANGE inside & follow the below steps for safe return to our warehouse; where your return will be processed promptly.

Return Items by Post

It is your responsibility to ensure that the item is returned to us in a safe and secure manner, and in the event of a refund or exchange, in saleable condition (in original packaging and including all warranty, cards, manuals and accessories).

Customers are accountable for return shipping charges.

  1. You should always keep proof of postage and we advise you to use a ‘signed for service’ when returning goods.
  2. Send your package using a recorded delivery method (always keep a copy of your receipt!) to the following address:

Leisure Lakes Bikes Returns,
Unit 1 Osprey Place
Titan Way,
Leyland,
PR26 7EW

Checkout by Amazon Returns

If you used the pay by Amazon option when checking out then please send your package using a recorded delivery method (always keep a copy of your receipt!) with a note inside stating whether you want an exchange (what you want it exchanging for) or refund, to the following address:

Leisure Lakes Bikes Returns,
Unit 1 Osprey Place
Titan Way,
Leyland,
PR26 7EW

Bike & Bulky Item Returns

If you wish to return your bike to us please keep it in the box it arrived in and call us on 01772 644340 and we will arrange a collection.

Please note the following:

  • a) If we have sent you the incorrect bicycle, we will cover the cost of collection and delivery of the correct model.
  • b) If we have delivered the bicycle you ordered, but upon inspection you decide it is not the bike for you, we will charge you £50.00 for the collection.

Please do not ride the bike as a full refund cannot be given if the bike has been used or damaged.

Return Items to a store

Any item (excluding food and underwear) can be returned to any Leisure Lakes Bikes store not just the one you made your purchase at, including those made online. The item must be returned in ‘showroom condition’, with its original packaging, tags and with a valid receipt/delivery note.

Wrong size or you don't like the item?

If returning items that are not suitable for either refund or exchange you are accountable for the delivery cost in returning it to us. You should always keep proof of postage and we advise you to use a ‘signed for service’ when returning goods.

New faulty items/ Wrong Item Received

If you have received items that are faulty or not what you ordered send them back to us (using the steps above) and we will cover the delivery cost of the return if it is within 14 days of delivery. If we have supplied the correct product, it is not faulty or it is outside of the 14 days we can not be liable for your postage charges. You should always keep proof of postage and we advise you to use a ‘signed for service’ when returning goods.

In the event that you have received items that are fault or not what you ordered, please send them back to us as soon as possible. Only in these cases will we cover the cost of the return shipping charges.

Faulty Items

If you have received items that are faulty please send them back to us using the steps above. Please include a covering letter describing the fault and if you would like the item replacing or refunding. Once the item arrives back at our Mail Order Centre you will receive an email notifying you about the progress. Faulty items are then forwarded onto the suppliers to confirm the warranty issue. Please be patient with us as we need to receive this confirmation from the suppliers before we can process your request for a replacement/refund.

When returning the item please use Royal Mail1stClass Recorded* so that you have a tracking reference just in case! If your item arrived faulty we will refund your postage cost. If the item was in full working order at the time of delivery to you, we can not refund your return postage cost.

*In the event that you return a faulty/incorrect item we will refund your postage charge as long as it is 1stClass Recorded or a lesser value service. We do not refund premium services.

Refunds

Refunds will be processed using the same method of payment used for the original purchase. Credit and debit card refunds must be made to the card used for the original transaction, cheque payments will be refunded in cash but due to banking restrictions can only be refunded at least 14 days after the original purchase date. Due to the high incidence of fraud we regret that we are unable to offer any refund without a valid receipt/delivery note.

Refunds will be made for faulty or incorrect items, including any delivery charge incurred by the buyer (excluding ‘Special Delivery’) in the return of the item. If the products you ordered are delivered to you in good condition but you wish to return them for any reason we will refund the full value of the goods excluding any carriage charge upon receipt of your returned goods.

Items won’t be considered lost until after 15 working days of items beingdispatched. Once the 15 working days are up we will issue a refund or replacement.

Not received your order?

If you have not received your order please call us on 01772 644340 and a member of staff can confirm the shipping date. Unfortunately we cannot consider an item to be lost until 15 working days has passed (according to Royal Mail procedure). Once the 15 working days have passed we will be able to issue a full refund or resend your order.

Trek Supercaliber SLR 9.9 Flight Attendant Mountain Bike 2025 Red Smoke Drizzle

Season:2025

Brand:Trek

Code:25-48043-RED

The Trek Supercaliber SLR 9.9 Flight Attendant Mountain Bike is an ultralight XC mountain bike built with the 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. It’s equipped with a 110 mm fork and 80 mm IsoStrut shock with Flight Attendant tech that delivers free speed with non-stop suspension adjustments as you ride. It's all topped off with carbon wheels, a carbon cockpit and SRAM's lightest wireless direct-mount transmission.

It's right for you if...

You. Need. Speed. You want the lightest and fastest cross-country race bike you can find, with tech that’s been proven on the world stage. You want to sprint up climbs and hammer to the finish, and let your bike do the thinking for you with 110 mm front and 80 mm of IsoStrut rear suspension with RockShox Flight Attendant. From wheels to cockpit, you crave carbon and you want the most meticulous high-mod carbon lay-up we offer on a mountain bike.

The tech you get

A featherweight, high-modulus SLR OCLV Mountain Carbon frame with modern XC geometry. 110 mm of front suspension from a RockShox SID SL Ultimate fork with DebonAir spring and Charger Race Day damper, and 80mm of IsoStrut rear suspension from a RockShox SIDLuxe shock – all with Flight Attendant tech. An ultralight, fully wireless SRAM XX SL AXS 12-speed electronic transmission, Bontrager Kovee RSL carbon wheels, carbon Bontrager RSL Integrated bar/stem combo, RockShox Reverb AXS wireless dropper post and SRAM Level Ultimate 4-piston hydraulic disc brakes.

The final word

The Supercaliber SLR 9.9 Flight Attendant Gen 2 is bred for racing and comes from a pedigree of champions. You get our top carbon XC full-suspension frame dripping with carbon components and SRAM’s lightest fully-wireless groupset, and RockShox Flight Attendant suspension that automatically adjusts to how and where you’re riding, so you can gain free speed.

Trek Supercaliber SLR 9.9 Flight Attendant Mountain Bike Highlights

  • You get a 110 mm fork and 80 mm of IsoStrut rear suspension with RockShox Flight Attendant that partners with slacker, capable geometry for handling the roots and rocks of modern XC courses
  • You don't have to compromise stiffness for weight savings thanks to the SLR OCLV Mountain Carbon frame that's intensely light, stiff and responsive
  • IsoStrut gives you tunable, damped suspension without missing out on efficiency for hammering up climbs at top speed
  • Pivotless seat stays save on weight and actively bend to help soak up trail chatter
  • Cream-of-the-crop components, like a RockShox SID Ultimate fork with Flight Attendant and fully wireless direct-mount SRAM XX SL AXS transmission, give you the performance advantage
Technical Information
Frame
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
Max compatible fork travel120mm, min 100mm
Wheel front
Bontrager Kovee RSL, OCLV Mountain Carbon, Tubeless Ready, CentreLock, Boost110, 15 mm thru axle, 29"
Wheel rear
Bontrager Kovee RSL, OCLV Mountain Carbon, Tubeless Ready, CentreLock, Boost148, 12 mm thru axle, 29"
Skewer rear
Bontrager Switch thru axle, removable lever
Tyre
Pirelli Scorpion XC, Tubeless-Ready, Team Edition Pro Wall, aramid bead, 120 tpi, 29x2.20"
Tyre part
Bontrager TLR sealant, 180 ml/6 oz
Rim stripBontrager TLR
Max tyre size
Frame: 29x2.40", Fork: See manufacturer
Battery
SRAM eTap battery pack (with charger)
Rear derailleur
SRAM XX SL Eagle AXS, T-Type
*Crank
Size: S, M
SRAM XX SL, Flight Attendant, DUB Wide, 34T alloy ring, 55 mm chainline, 170 mm length
Size: ML, L, XL
SRAM XX SL, Flight Attendant, DUB Wide, 34T alloy ring, 55 mm chainline, 175 mm length
Bottom bracket
SRAM DUB, 92 mm, PressFit
CassetteSRAM Eagle XS-1299, T-Type, 10-52, 12-speed
Chain
SRAM XX Eagle, T-Type, 12-speed
Max. chainring size1x: 38T, min 30T
SaddleAeolus RSL, carbon rails, 145 mm width
*Seatpost
Size: S
RockShox Reverb AXS, 100 mm travel, wireless, 31.6 mm, 340 mm length
Size: M, ML, L, XL
RockShox Reverb AXS, 150 mm travel, wireless, 31.6 mm, 440 mm length
*Handlebar/stem (integrated)
Size: S, M, ML
Bontrager RSL Integrated handlebar/stem, OCLV Carbon, 0 mm handlebar rise, 750 mm width, -13-degree stem rise, 70 mm length
Size: L
Bontrager RSL Integrated handlebar/stem, OCLV Carbon, 0 mm handlebar rise, 750 mm width, -13-degree stem rise, 80 mm length
Size: XL
Bontrager RSL Integrated handlebar/stem, OCLV Carbon, 0 mm handlebar rise, 750 mm width, -13-degree stem rise, 90 mm length
GripsESI Chunky
Head setFSA IS-2, 1-1/8" top, 1.5" bottom
BrakeSRAM Level Ultimate 4-piston hydraulic disc
Brake rotorSRAM CentreLine X, CentreLock, round edge, 160 mm
Rotor sizeMax brake rotor sizes - Frame: 160mm, Fork: see fork manufacturer
Weight
M - 10.11 kg / 22.29 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
size-table
SizeRider HeightInseam
S

155 - 165 cm

5'1" - 5'5"

74 - 78 cm

29" - 31"

M

165 - 176 cm

5'5" - 5'9"

79 - 83 cm

31" - 33"

ML

173 - 180 cm

5'8" - 5'11"

81 - 86 cm

32" - 34"

L

177 - 188 cm

5'10" - 6'2"

84 - 89 cm

33" - 35"

XL

188 - 195 cm

6'2" - 6'5"

89 - 91 cm

35" - 36"

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