Velopedia Bicycle Archive
2026 Trek Slash 9.8 XT Di2 Gen 6
Mountain bicycle from the Velopedia specification archive.
- Original MSRP
- $5,999.93
- Sizes
- S (27.5" wheel); M; ML; L; XL
- Colors
- Dark Star/Dark Web; Matte Chameleon Green /Dark Web
- Weight
- M - 16.63 kg / 36.67 lbs (with TLR sealant, no tubes)
- Geometry
- 5 manufacturer sizes
- Archive ID
- 900000697
Current market
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Velopedia analysis
What the specifications mean
Suspension at both ends means fork and shock setup should be considered together; mismatched sag or rebound can leave the front and rear reacting very differently. Electronic shifting removes the usual shift cable but adds a separate battery and controls, while the 510% cassette range describes how much gearing is available. Hydraulic disc brakes shift routine service toward pad and rotor condition, fluid leaks and use of the correct bleed fluid.
Suspension setup
Front + rear
Fork and shock pressure, sag and rebound should be balanced and recorded independently.
Drivetrain
Electronic · 510% range
Shift-system battery state joins derailleur setup and sprocket compatibility as a troubleshooting variable.
Brake service
Hydraulic disc
Pad and rotor condition plus the correct bleed fluid are the primary service checks.
Frame material
Mixed materials
Composite impact checks and metal-joint inspection both apply.
Used-bike inspection
If you’re buying this bike used
Before any test ride: both brakes should stop the bike firmly and release cleanly; both wheels should run true and be securely attached; tires should have no casing damage; and the headset, handlebar, stem, cranks and pedals should have no looseness or play.
Follow the full used-bike inspection order →- FrameInspect the composite sections for impact or clamp damage, then check the metal joints and welds for dents or cracking. Ask about any crash history.Inspect the frame and fork →
- BrakesBoth levers should feel firm and return cleanly. Check for fluid around the levers and calipers, inspect pad thickness and contamination, and look for worn or bent rotors.Inspect the brakes →
- SuspensionAsk when the fork and shock were last serviced. Check the stanchions for damage, look for oil at the seals, cycle both units through their travel and test the suspension pivots for play.Evaluate the suspension →
- DrivetrainConfirm every shift-system battery charges, every shift control works and the derailleur moves cleanly across the cassette. Make sure the matching shift-system charger is included, then measure chain wear and inspect the cassette teeth.Check drivetrain wear →
- Bottom bracketTurn the cranks slowly, feel for rough bearings and check for side-to-side play. Creaking under load deserves investigation but does not identify the source by itself.Inspect the bottom bracket and shell →
Bike-specific inspection checklist 19 checks based on 5 archived component groups Open checklistClose checklist
This checklist uses the archived equipment for this bike. It cannot confirm the condition, service history or later component changes of the example in front of you.
Identity and fit
Follow the full used-bike inspection order →Archived: 2026 Trek Slash 9.8 XT Di2 Gen 6 · Mountain · Published sizes: S (27.5" wheel); M; ML; L; XL
Frame and fork
Inspect the frame and fork →Archived: Frame: OCLV Mountain Carbon, high main pivot, idler pulley, internal storage, angle-adjust headset, adjustable leverage rate, integrated frame protection, internal routing, alloy rocker link, ISCG 05, Active Braking Pivot, UDH, 148x12mm thru axle, 170mm travel · Fork: RockShox ZEB Select+, DebonAir spring, Charger 3.1 RC2 damper, tapered steerer, 44mm offset, Boost110, Maxle Stealth, 170mm travel
Suspension
Evaluate the suspension →Archived: Fork: RockShox ZEB Select+, DebonAir spring, Charger 3.1 RC2 damper, tapered steerer, 44mm offset, Boost110, Maxle Stealth, 170mm travel · Rear shock: RockShox Vivid Select+, 230mm x 65mm
Drivetrain
Check drivetrain wear →Archived: Group: Shimano XT Di2 M8250 · Shifters: Shimano XT Di2 M8250, 12 speed · Rear derailleur: Shimano XT M8250, long cage · Crankset: Shimano XT 8200, 30T, 55mm chainline, 170mm length · Bottom bracket: Shimano BB-MT501 BSA · Cassette: Shimano XT M8200, 10-51, 12 speed · Chain: Shimano XT M8100, 12 speed
Brakes
Inspect the brakes →Archived: Brakes: Shimano XT M8220 4-piston hydraulic disc
Controls and contact points
Archived: Headset: 1-1/8'' threadless, sealed cartridge bearings · Handlebar: Bontrager Line Pro, OCLV Carbon, 35mm, 27.5mm rise, 820mm width · Stem: Bontrager Line Pro, 35mm, Blendr compatible, 0 degree, 35mm length · Saddle: Verse Short Comp, steel rails, 145mm width
Before and during the test ride
Follow the full used-bike inspection order →Interpretation based on the archived manufacturer specifications. Confirm exact fit and standards before ordering parts or performing service.
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Frameset
| Frame Construction | OCLV Mountain Carbon, high main pivot, idler pulley, internal storage, angle-adjust headset, adjustable leverage rate, integrated frame protection, internal routing, alloy rocker link, ISCG 05, Active Braking Pivot, UDH, 148x12mm thru axle, 170mm travel |
|---|---|
| Frame Material | Carbon fiber |
| Fork | RockShox ZEB Select+, DebonAir spring, Charger 3.1 RC2 damper, tapered steerer, 44mm offset, Boost110, Maxle Stealth, 170mm travel |
| Rear Shock | RockShox Vivid Select+, 230mm x 65mm |
Drivetrain
| Component Group | Shimano XT Di2 M8250 |
|---|---|
| Shifters | Shimano XT Di2 M8250, 12 speed |
| Rear Derailleur | Shimano XT M8250, long cage |
| Crankset | Shimano XT 8200, 30T, 55mm chainline, 170mm length |
| Bottom Bracket | Shimano BB-MT501 BSA |
| Cassette | Shimano XT M8200, 10-51, 12 speed |
| Chain | Shimano XT M8100, 12 speed |
Brakes
| Brakes | Shimano XT M8220 4-piston hydraulic disc |
|---|
Cockpit & Contact Points
| Headset | 1-1/8'' threadless, sealed cartridge bearings |
|---|---|
| Handlebar | Bontrager Line Pro, OCLV Carbon, 35mm, 27.5mm rise, 820mm width |
| Stem | Bontrager Line Pro, 35mm, Blendr compatible, 0 degree, 35mm length |
| Saddle | Verse Short Comp, steel rails, 145mm width |
| Seatpost | S: Bontrager Line Dropper, 150mm travel, MaxFlow, internal routing, 34.9mm, 410mm length / M: Bontrager Line Dropper, 170mm travel, MaxFlow, internal routing, 34.9mm, 450mm length / ML, L, XL: Bontrager Line Dropper, 200mm travel, MaxFlow, internal routing, 34.9mm, 515mm length |
Wheels & Tires
| Wheels | (F) S: Bontrager Line Comp 30, Tubeless Ready, 6-bolt, Boost110, 15mm thru axle, 27.5'' / M, ML, L, XL: Bontrager Line Comp 30, Tubeless Ready, 6-bolt, Boost110, 15mm thru axle, 29'' / (R) Bontrager Line Comp 30, Tubeless Ready, Rapid Drive 108, 6-bolt, Shimano Micro Spline freehub, Boost148, 12mm thru axle, 27.5'' |
|---|---|
| Front Tire | S, M, ML, L, XL: Bontrager Brevard RSL SE, Tubeless Ready, triple compound, aramid bead, 60 tpi, 27.5x2.5'' / M, ML, L, XL: Bontrager Brevard RSL SE, Tubeless Ready, triple compound, aramid bead, 60 tpi, 29x2.5'' |
| Rear Tire | S, M, ML, L, XL: Bontrager Brevard RSL SE, Tubeless Ready, triple compound, aramid bead, 60 tpi, 27.5x2.5'' / M, ML, L, XL: Bontrager Brevard RSL SE, Tubeless Ready, triple compound, aramid bead, 60 tpi, 29x2.5'' |
Size-specific frame data
Geometry
Manufacturer-published geometry normalized for consistent archival comparison. Effective top tube and reach remain separate measurements because they describe different aspects of fit.
| Measurement | 15.5 (S) | 17.5 (M) | 18.5 (ML) | 19.5 (L) | 21.5 (XL) |
|---|---|---|---|---|---|
| Seat tube | 390 mm | 400 mm | 420 mm | 435 mm | 470 mm |
| Effective top tube | 548 mm | 578 mm | 605 mm | 628 mm | 658 mm |
| Head tube | 100 mm | 100 mm | 110 mm | 120 mm | 140 mm |
| Head-tube angle | 63.5° | 63.3° | 63.3° | 63.3° | 63.3° |
| Seat-tube angle | 78.1° | 77.8° | 77.3° | 77.1° | 76.7° |
| Actual seat-tube angle | 74° | 73.8° | 73.8° | 73.8° | 73.8° |
| Chainstay / rear center | 429 mm | 429 mm | 434 mm | 434 mm | 439 mm |
| Wheelbase | 1195 mm | 1224 mm | 1253 mm | 1278 mm | 1312 mm |
| Bottom-bracket drop | 10 mm | 27 mm | 27 mm | 27 mm | 27 mm |
| Bottom-bracket height | 352 mm | 351 mm | 351 mm | 351 mm | 351 mm |
| Reach | 430 mm | 448 mm | 468 mm | 488 mm | 513 mm |
| Stack | 588 mm | 623 mm | 632 mm | 641 mm | 659 mm |
| Standover height | 727 mm | 766 mm | 766 mm | 767 mm | 768 mm |
| Fork offset / rake | 43 mm | 43 mm | 43 mm | 43 mm | 43 mm |
| Trail | 132 mm | 143 mm | 143 mm | 143 mm | 143 mm |
| Wheel size | 27.5" | 29"/27.5" | 29"/27.5" | 29"/27.5" | 29"/27.5" |
Geometry source: Trek first-party OCC sizing data ↗ Measurements can vary by configuration, wheel size, or flip-chip position where noted by the manufacturer.
Gallery
Specifications are presented as a reference. Components may vary by market, size, production run, or later manufacturer revisions.