The Geosmina Bolt-On Small Frame Bag is the rock-solid, no-drama upgrade for riders who want permanent, vibration-free storage right in the heart of their bike—without straps that shift or wear out over time.
Engineered for seamless integration on frames with threaded bosses (or adaptable setups), this compact powerhouse uses direct bolt-on mounting for ultimate stability—no flex, no rattle, even on the gnarliest descents or high-speed gravel hammering.
Constructed from a tough 600D Nylon outer shell fused to a waterproof TPU inner laminate, the seamless high-frequency welded build guarantees 100% waterproof protection. Downpours, creek splashes, and trail muck stay out—your phone, tools, snacks, and spares remain perfectly dry.
Premium YKK waterproof zippers with dual easy-grip pullers open smoothly even with winter gloves or muddy fingers, while the removable inner structure in waterproof 210D Ripstop Nylon (PU-coated) features bright yellow contrast for lightning-fast item location.
An internal divider splits the space into two smart compartments—keep electronics separate from greasy tools or wet layers for effortless organization.
A clever front cable pass-through hole routes charging cables or lights cleanly without breaking the seal, and reflective logos keep you visible when the sun drops.
Mount it bombproof with double screw attachment (or switch to the included two sets of Hypalon-reinforced Velcro straps with 3 attachment points each for versatility across different tube sizes).
Low-profile, lightweight, and rider-obsessed—this isn't a strap-on afterthought; it's a permanent, pro-level essential that stays put ride after ride.
Ditch the wiggle. Lock in reliability. Grab the Geosmina Bolt-On Small Frame Bag and make your setup unbreakable.