Trek Supercaliber SLR 9.8 XT Di2 Gen 2 Mountain Bike 2027 - Trail Full Suspension MTB











The Trek Supercaliber SLR 9.8 XT Di2 Gen 2 is a lightweight XC race bike built for modern courses. Its 110mm Fox fork, 80mm IsoStrut rear suspension, wireless XT Di2 drivetrain and carbon wheels balance pedalling efficiency with control on rougher trails.
Key Features:
- SLR OCLV Mountain Carbon frame with IsoStrut, UDH and 80mm rear travel
- Fox Factory 34 SL fork with 110mm travel and GRIP SL damper
- Trek IsoStrut with RockShox SIDLuxe shock and 80mm rear travel
- Shimano XT Di2 1x12-speed wireless drivetrain with 10-51T cassette
- Shimano XT M8200 4-piston hydraulic disc brakes
- 29in Kovee Elite 30 carbon wheels with Maxxis Aspen 2.4in tyres
- RSL carbon cockpit and remote suspension control keep the build race focused
- Available with 0% APR finance
The Trek Supercaliber SLR 9.8 XT Di2 Gen 2 is built for cross-country riders who want the efficiency of a lightweight race bike with more control than a traditional hardtail. Its distinctive IsoStrut suspension system delivers 80mm of rear travel, while a 110mm Fox Factory fork adds extra capability for the rougher, more technical XC courses now common in racing.
At the heart of the bike is Trek's SLR OCLV Mountain Carbon frame. This high-modulus carbon lay-up is designed to reduce weight while maintaining the stiffness needed for hard acceleration and efficient climbing. Trek also removes some internal cable guide material to save further weight, keeping the frame focused firmly on race performance.
The Supercaliber's IsoStrut design replaces a conventional rear shock and linkage with a compact integrated suspension unit. A RockShox SIDLuxe shock sits within the top tube area and works with pivotless seat stays to deliver around 80mm of rear wheel travel. This keeps the suspension layout light and simple while still providing controlled damping and useful traction over roots, rocks and repeated trail chatter.
The pivotless seat stays are designed to flex as the suspension moves, helping reduce the number of pivots and hardware required. This contributes to the Supercaliber's low weight while also allowing the rear end to absorb smaller impacts without compromising pedalling efficiency.
Up front, the Fox Factory 34 SL provides 110mm of travel through a Float EVOL air spring and lightweight GRIP SL damper. The additional travel and slacker modern XC geometry give the bike a more composed feel on technical descents, while the two-position damper and remote lockout let you quickly firm up the suspension for hard climbing and sprinting efforts.
Shimano XT Di2 provides wireless 1x12-speed electronic shifting. The XT M8250 rear derailleur is paired with a wide-range 10-51T M8200 cassette, giving you plenty of low gearing for steep climbs while retaining the close, fast shifts needed when racing. The wireless system also reduces cockpit clutter and allows shifting behaviour to be customised.
An E*thirteen Helix Race carbon chainset with a 34T chainring keeps weight low and provides a suitably race-focused gear setup. A Shimano XT M8100 chain completes the 12-speed drivetrain.
Shimano XT M8200 four-piston hydraulic disc brakes provide the stopping power. The four-piston design gives strong, controlled braking for modern XC courses, where steeper descents and technical features place greater demands on the brakes than traditional cross-country racing.
Bontrager Kovee Elite 30 carbon wheels keep rotating weight down while providing a wide platform for the 29x2.4in Maxxis Aspen tyres. The Aspen tread is designed to roll quickly while still offering useful grip on loose and varied race surfaces, and the tubeless-ready construction allows lower pressures for added traction and comfort.
A Bontrager RSL integrated carbon handlebar and stem further reduces weight and creates a clean, stiff cockpit. The build also includes a dropper post, giving you more room to move around the bike on steep or technical descents without compromising climbing position when the saddle is raised.
The Supercaliber SLR 9.8 XT Di2 Gen 2 sits between a hardtail and a conventional full-suspension XC bike. Its lightweight carbon frame, compact IsoStrut suspension, 110mm Fox fork and wireless XT Di2 drivetrain make it especially well suited to riders focused on XC racing, marathon events and fast technical trails where pedalling efficiency still matters as much as descending control.
Occasionally, without notice, manufacturers change product design and/or specifications.
| Frame | SLR OCLV Mountain Carbon, IsoStrut, UDH, 80 mm travel |
| Fork | Fox Factory 34 SL, Float EVOL air spring, GRIP SL 2- position damper, tapered steerer, 44 mm offset, Boost110, 15 mm Kabolt X axle, 110 mm travel |
| Rear Shock | Trek IsoStrut, RockShox SIDLuxe, 2-position remote damper |
| Headset | FSA IS-2, 1-1/8" top, 1.5" bottom |
| Stem | Bontrager RSL Integrated handlebar/stem |
| Front Brake | Shimano XT M8200 4-piston hydraulic disc // Shimano XT M8200 4-piston hydraulic disc |
| Rear Brake | Shimano XT M8200 4-piston hydraulic disc // Shimano XT M8200 4-piston hydraulic disc |
| Rear Mech | Shimano XT M8250, long cage |
| Speed | 12 |
| Rims | Bontrager Kovee Elite 30 |
| Front Tyre | Maxxis Aspen, Tubeless Ready, EXO casing, folding bead, 29x2.4" |
| Rear Tyre | Maxxis Aspen, Tubeless Ready, EXO casing, folding bead, 29x2.4" |
| Saddle | Verse Short Elite, hollow magnesium rails, 145 mm width |
| Chainset | E*thirteen Helix Race Carbon, 34T, 55 mm chain-line |
| Bottom Bracket | E*thirteen BB20-92 |
| Chain | Shimano Ultegra/XT M8100, 12-speed |
| Cassette | Shimano XT M8200, 10-51, 12-speed |
Mountain Bike Size Chart
|
Height
|
Bike Size
|
Mountain Bike Size
|
|
4’8” – 5’1”
143 – 155 cm
|
XXS
|
13” (33 cm)
|
|
5’1” – 5’4”
155 – 163 cm
|
XS
|
15” (38 cm)
|
|
5’4” – 5’7”
163 – 170 cm
|
S
|
16” (41 cm)
|
|
5’7” – 5’10”
170 – 178 cm
|
M
|
18” (46cm)
|
|
5’10” – 6’0”
178 – 183 cm
|
L
|
19” (48cm)
|
|
6’0” – 6’3”
183 – 191 cm
|
XL
|
20” (51 cm)
|
|
6’3” – 6’5”
191 – 196 cm
|
XXL
|
21” (53 cm)
|
|
6’5” – 6’9”
196 – 205 cm
|
XXXL
|
22” (56 cm)
|
* Mountain bikes are sized differently to road bikes. Typically, they are sized in inches as the first MTBs were produced in the USA. European brands like Lapierre and Haibike like to use centimetres for all their bikes. The measurements of their mountain bikes doesn’t match their road bikes but are like a simple conversion from the inches measurement. This is why we have included cm measurements in brackets for the Mountain bike column.
Read our bike size guide for more information on sizing.
Customer reviews and Q&A's are disabled because you declined functional cookies.
To enable reviews and Q&A's click the 'Cookie Settings' button below and enable functional cookies.
Get this on cycle to work
Save up to £2,940.00
Cycle to work is a government funded salary sacrifice scheme which allows you to spread the cost of purchasing a bike and equipment and save on Income Tax and National Insurance.
Lower Tax Rate | Higher Tax Rate | |
|---|---|---|
Monthly pre-tax cost | £583.33 | £583.33 |
Monthly cost to you | £420.00 | £338.33 |
Total cost over 12 mths | £5,040.00 | £4,060.00 |
Total savings | £1,960.00 | £2,940.00 |
The calculations provided here are based on a monthly pay frequency and will vary depending on your personal taxation and your employers scheme.
Bikes, Accessories & Clothing