Shop Our Categories MyCycle.ie Search site Deal of the Day Bikes Road Bikes Cross & Gravel Bikes Mountain Bikes Electric Bikes Fold-up Bikes Hybrid Bikes Touring Bikes Ladies Bikes Kids Bikes Girls Bikes Boys Bikes Parts Brakes Forks Frames Gears Di2 Electronic Gears Gear Shifters-STI Levers Front Derailleurs Rear Derailleurs Cassettes Bottom Brackets Chains Chainsets Groupsets finish kits Handlebars & Stems Bar Ends Handle Bars Spacers Stems Mudguards Pedals MTB Road Touring & Leisure Saddles & Seatposts Seat Clamps Seatposts Saddles MTB Recreational Road Tyres & Tubes Cyclocross MTB Road Wheels MTB Road Accessories Bike Transport Bags Backpacks Panniers & Racks Saddle Bags Top Tube Bags Bike Fitting Bike Trailers & Child Seats Child Seats Kids Trailers and Tag Alongs Bike Accessories Mirrors Bottles & Bottle Cages Bottle Cages Bottles Electonics Power Meters Cameras GPS Cycle Computers Bar Tape & Grips Bar Ends Bar Tape Grips Lights Front Lights Light Sets Rear Lights Locks Lubricants & Cleaning Tools Pumps Turbo Trainers Sunglasses Clothing Eyewear Nutrition Helmets P.O.C Gents Bikes Ladies Bikes Kids Accessories Base Layers Gloves Jackets Jerseys & Tops Ladies Clothing Reflective Wear Rain Pants Socks Shoes MTB Road Touring & Leisure Shorts Tights Christmas Shop Kids & Junior Christmas Bikes Balance Bikes & Age 1–3 First Pedal Bikes (Age 4–6) Junior Performance (Age 7–9) Big Kids & Pre-Teen (Age 10–12) Teen & Adult Christmas Bikes Electric Bikes Hybrid & Commuter Bikes Mountain & Trail Bikes Road & Gravel Bikes Stocking Fillers & Accessories Bike Care & Tools Gifts Under €20 Gifts Under €50 Lights & Safety Submit Search Top Brands Colnago Gravel Road Factor Road bikes Gravel Bikes Trek Road Cross & Gravel Mountain Hybrid Ladies Kids Electra Coros Cycyling computers Watches Cube Gravel Mountain Bikes Full-Suspension Hardtail Road Bikes E-Bikes Kids Bikes City Bikes Ridgeback Kids Touring Mountain Hybrid Road Ghost Brompton Accessories Bikes E-Bikes Bianchi Road E-Bikes Mountain bike Ladies Framesets Genesis P.O.C Ladies Urban S-Works Mountain Road Touring Cross & Gravel Mountain Fixies Road Giant Cross & Gravel Kids Electric Mountain Road Hybrid Ladies Raleigh Adult Bikes Kids Bikes Ridley Cross & Gravel Mountain Road Eddy Merckx REID Electric Bikes Adventure Aeroe AirPop Amplitude AtranVelo Axa Aztec Basil Bikefitting Crud Products DT Swiss Dugast Dynaplug Elite Finish Line Fist Handwear Garmin Gorilla Gtechniq HUMP Infini K-Edge Kingston Knog Kryptonite Lazer Lifesystems Lifeventure M Part M Part Wheels Madison Madison Eyewear Madison Saddles Maxxis Motion Pro Nutrak ODI OGIO Park Tool Petzl PRO Profile Design Quad Lock Rema Tip Top Science In Sport Shimano 105 Acera Alfine Alivio Altus Claris Clothing CUES Deore Deore XT Dura-Ace Dura-Ace Track DXR ESSA GRX Nexus Non-Series Di2 Non-Series MTB Non-Series Road Saint SLX Sora Spares STEPS Tiagra Tourney / TY Ultegra Workshop XTR ZEE Slime SmartWasher Storm Thule Thule Chariot TOOO Cycling Trelock Truflo Urban Iki Vittoria Wheels Manufacturing White Lightning Nav Menu 5 Nav Menu 6 Nav Menu 7 Nav Menu 8 Home > Helmet Trek Ballista Mips Large White CE Our Price: €250.00 Custom Field 3: 2027 Availability: 5 Product Code: 5279743 Qty: Description Technical Specs Genuine cycling gear available at MyCycle.ie (Kilmacud, Dublin) with full warranty, expert mechanic support, and fast nationwide delivery or free Click & Collect. Our fastest helmet ever - Ballista is the fastest helmet in Trek's line-up. Its aerodynamic efficiency saves riders 10.1 watts of power and more than one bike length during a final sprint versus the Velocis in a standard one-hour test. Features Trek's fastest, most aerodynamic helmet will save big watts and shave crucial seconds Share your knowledge of this product with other customers... Be the first to write a review Bag Trek MIK 2.0 Commuter Trunk €120.00 Speed Clean unstocked POS €69.99 Brompton Transit Travel Bike Bag €204.95 Rivo Large Single Bag Tarpaulin MIK Hooks 25-31L s €74.99 Forerunner 935 / 945 Quick Release Watch Strap Kit €24.99 Cover Trek Marlin+ Motor Access w/Bolts Black €7.00 Truflo Maxtrax 3 Track Pump with Top Mounted Gauge €39.95 Truflo Road CNC High Pressure Mini Pump €39.95 Cable Management Fox Fork Hardware Brake Hose Guide 2020 €25.00
