How To Keep Your Bike Alive Longer
Regular bike maintenance keeps your ride performing at its best. Learn why it's important to clean your bike properly, what checks to do before and after rides, and when to service brakes, tires, and suspension.
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The Specialized Stumpjumper 15 Expert redefines trail performance with its FACT 11m carbon chassis, GENIE Shock Technology, and six-way adjustable geometry for unmatched personalization. The FOX FLOAT Performance Elite shock and FOX 36 Performance Elite fork deliver coil-like traction with air-spring efficiency, while the SRAM GX Eagle T-Type AXS drivetrain ensures precise, wireless shifting. Roval Traverse wheels, SRAM Maven Bronze brakes, and SWAT 4.0 downtube storage complete a package built for control, durability, and all-terrain capability.
Frame | FACT 11m carbon chassis and rear-end, Trail Geometry, SWAT™ Door integration, head tube angle adjustment, threaded BB, internal brake and dropper cable routing, 12x148mm dropouts, sealed cartridge bearing pivots, SRAM UDH compatible, 145mm of travel |
Seat Binder | Alloy, 38.6mm |
SWAT | SWAT 4.0 internal downtube storage |
Rear Shock | FOX FLOAT Performance Elite with Specialized GENIE Shock Tech, Ride Dynamics Trail Tune, 2-position lever w/3 setting Open mode tuning range, LSR adjustment, S1:210x52.5mm, S2-S6:210x55mm |
Fork | FOX FLOAT 36 Performance Elite, GRIP X2 damper, HS and LS rebound and compression adjustment, 15x110mm QR axle, 44mm offset, S1:140mm of travel, S2-S6:150mm of travel |
Front Brake | SRAM Maven Bronze, 4-piston caliper, hydraulic disc, 200mm HS2 Rotor |
Rear Brake | SRAM Maven Bronze, 4-piston caliper, hydraulic disc, S1-S2: 180mm, S3-S6: 200mm HS2 Rotor |
Shift Levers | SRAM AXS POD Controller |
Rear Derailleur | SRAM GX Eagle Transmission Derailleur |
Cassette | SRAM GX Eagle Transmission Cassette, 12spd, 10-52t |
Chain | SRAM GX Eagle Transmission Flattop Chain |
Crankset | SRAM GX Eagle Crankset, 32T ring, Integrated Guard, 55mm Chainline, S1-S3:165mm, S4-S6: 170mm |
Bottom Bracket | SRAM DUB, BSA 73mm Wide, Threaded |
Rims | Roval Traverse, hookless alloy, 30mm inner width, tubeless ready, Front: 29, Rear: S1-S2: 27.5, S3- S6: 29 |
Front Hub | DT Swiss 370, 15x110mm, 28h |
Rear Hub | DT Swiss 370, 12x148mm, 28h |
Spokes | Sapim Force |
Front Tire | Butcher, GRID TRAIL casing, GRIPTON® T9 compound, 2Bliss Ready, 29x2.3" |
Rear Tire | Eliminator, GRID TRAIL casing, GRIPTON® T7 compound, 2Bliss Ready, S1-S2: 27.5x2.3, S3- S6: 29x2.3" |
Inner Tubes | Standard, Presta valve |
Stem | Alloy Trail Stem, 35mm bar bore |
Handlebars | Specialized, 6000 series alloy, 6-degree upsweep, 8-degree backsweep. S1-S2: 780 width, 20mm rise: S3-S4: 800 width, 30mm rise: S5-S6: 800 width, 40mm rise |
Grips | Deity Lockjaw |
Saddle | Bridge Comp, Hollow Cr-mo rails, S1-S2: 155mm, S3-S6: 143mm |
SeatPost | PNW Loam Dropper, tool-less travel adjust, Range lever, 34.9, S1: 125mm, S2: 150mm, S3: 170mm, S4-S6: 200mm |
Information provided by manufacturer
Regular bike maintenance keeps your ride performing at its best. Learn why it's important to clean your bike properly, what checks to do before and after rides, and when to service brakes, tires, and suspension.
E-bikes have changed the way we ride, offering extra power for mountain trails, city commutes, and long-distance adventures. But choosing the right e-bike means understanding its motor, battery, and performance specs. Learn about mid-drive vs. hub motors, battery capacity, and what power levels are best for your riding style in this guide.
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