Bike Repair & Maintenance Log

Bike repair guides and a maintenance log in one app: find what's wrong, fix it step by step, and see which parts of each bike are due for service. ▶ STEP-BY-STEP REPAIR GUIDES • 30 guides, from fixing a flat and plugging a tubeless tire to chain wear, gear indexing, brake pads, disc rub and saddle height. • Each guide tells you about how long it takes, how hard it is and which tools you'll need. • One step at a time, each with its own drawing. The screen stays on while a guide is open. • Tap a part on the bike drawing (wheels, chain and gears, brakes, bar and stem, saddle, cranks and pedals, e-bike battery) to see its guides. ▶ WHAT'S WRONG? • Pick what you hear or feel: a creak when pedaling, gears that skip, brakes that squeal or feel spongy, a wheel that wobbles, frequent flats and more (15 symptoms). • See the likely causes, most common first, each with the guide that checks it. • Causes that affect safety say so clearly: don't ride until it's fixed. ▶ A SERVICE TRACKER FOR EVERY BIKE • Add your bikes with type, wheel size and gears. • Add rides or an odometer reading to keep each bike's distance and riding time up to date. • Track wear on the chain, cassette, brake pads, rotors, tires, sealant, cables, fork, shock, bearings and more. • Set each interval by distance, months or riding hours, whichever comes first, using the value from the part's manual. • See Due, Due soon and OK at a glance with what's left or over, plus one list of everything due across all your bikes. • Mark a service done with the date, distance, a note and a photo. The interval restarts from there and the history stays with the bike. • Optional reminder on the morning a month-based interval is due. ▶ WORKSHOP CALCULATORS • Tire pressure starting estimate from the load on each wheel, for tires from 23 to 37 mm, never above the tire or rim maximum you enter. • Gearing: ratio, development, gain ratio, gear inches and speed at your cadence. • Chain length in links for 2× and 3× derailleur bikes, with the big-big cross-check. • Spoke length for conventional J-bend wheels. • Saddle height first estimate with the 109% inseam method. ▶ YOUR RECORDS • Kilometers or miles. • Backup files with your bikes, history and photos, and a restore that shows what will be added or updated before anything changes. • Export the service history as a CSV file. • Deleted entries stay in Trash for 30 days, with Undo right away. ▶ GOOD TO KNOW • The guides are general guidance written by the Bike Fix team. Your component maker's instructions always come first, and safety jobs tell you when to stop and see a mechanic. • No torque figures are guessed: use the value printed on the part or in its manual. • Hydraulic brake bleeding is explained as an overview only. • Distance is what you enter. The app does not record rides with GPS or import them. • There are no built-in service intervals; you enter the ones from your parts' manuals. • Calculator results are estimates and theoretical values, not measurements. • No account, no sign-in. Your bikes and history are stored on your phone. The camera is used only when you take a service photo. • Ads appear on list screens, and sometimes after you finish a guide or save a service, never in the middle of a guide.

When a bike has no wear items yet, its “Wear” tab now shows “Track the parts that wear out” with six common parts pre-selected. Tap a part to leave it out, then “Add selected” adds the rest in one step as “Record only (no interval)” items, counted from today and the bike's current distance and hours. Tap one later to set its interval. “Add wear item” works as before. Also, if you leave a form while it is still saving, the save no longer closes the screen you opened next.