Clif Bloks Energy Chew Bar. Clif Bar Shot Block Energy Chews are the latest nutrition option for endurance athletes. Bloks come in chewable, 33 calorie cubes, making it easy to customise and track caloric and electrolyte intake during long outings and races. Specification Sleek and portable fastpak Replaces carbs and electrolytes during activity Simple to handle Great for riders that don't like gels but are still looking for that quick energy hit Weight: 60G; Flavour: MOUNTAIN BERRY, TROPICAL PUNCH, STRAWBERRY, BLACK CHERRY A blend of tangy and dark berry flavours, as if perfected in rarified mountain air. Simple-to-handle and easy-to-chew, CLIF BLOKS® for your workout.. Food supplement with carbohydrates and potassium. Simple-to-Handle. Easy-to-Chew. Source of electrolytes and minerals.