The Mongoose Grendel is the perfect bike for a wekend-warrior looking to navigate rocky descents or other technical terrain – whether its gravel or dirt – with confidence



Available at the following retailers:
Named after the mythical creature in Nordic culture, the Grendel is a unique monster cross bike built for aggressive riding from gravel grinding to ultra XC racing. Built on a Tectonic T2 butted aluminum 29’er hardtail frame with front shock, road drop bars, and
optimal tire clearance, the Grendel strikes the right balance of agility, responsiveness, and comfort.


Frame Icon Frame Tectonic T2, aluminum, 700c adventure geometry, Top Tube braze ons, internal cable routing, 9 mm x 141 mm QR dropout convertible to 12 mm x 148 mm thru axle, replaceable hanger, tapered headtube

Fork Icon Fork SR Suntour XRC-32 with lockout, 29”, aluminum steerer, 9 mm x 100 mm, QR

Crank Icon Crank Prowheel Charm, aluminum, 30T

Chain Icon Chain KMC X11

Bottom Bracket Icon Bottom Bracket Prowheel, cartridge, 3-piece, threaded 73 mm shell

Shifters Icon Shifters SRAM Apex, 11-speed

Cog Icon Rear Cog Sunrace, 11-speed, 11-42T

Rear Derailleur Rear Derailleur WTB ST-i29, aluminum double wall, 29 mm ID, 32H, tubeless compatible,

Rim Icon Rims WTB ST-19, aluminum double wall, 19 mm ID, 32H, tubeless compatible

Hubs Icon Front Hub Xposure, aluminum, ball bearing, 9 mm x 100 mm, 32H, 6-bolt

Hubs Icon Rear Hub Xposure, aluminum, ball bearing, 9 mm x 141 mm, 32H, 6-bolt

Spokes Icon Spokes 14G, stainless steel

Tires Icon Tires Kenda Karma, 29 in x 2.20 in, wire bead

Pedal Icon Pedals Mongoose, nylon

Brakes Icon Brakes SRAM Apex post mount, hydraulic, aluminum, 160 mm rotor

Handlebar Icon Handlebar Xposure, aluminum, 380 mm - 440 mm width, 25 deg flare rise, 31.8 mm clamp

Stem Icon Stem Xposure 3D forged aluminum, threadless, 60 mm, -17°, 31.8 mm clamp

Headset Icon Headset Threadless, ZS44/ZS56, retainer bearing

Seat Post Icon Seat Post Xposure, aluminum, 350 mm, zero offset, 31.6 mm

Saddle Icon Saddle Mongoose adventure, steel rails

Grips Icon Grips Xposure, non-slip tape

Sizes Sizes SM, MD, LG, XL

Geometry & Sizing

Grendel geo chart