Lesson 1Common flat causes and how to distinguish them: puncture, pinch, valve failure, bead separationLearn to spot puncture, pinch, valve, and bead flats by how tube damage look and wetin happen. You go connect each one to wetin cause am and pick fixes wey go stop rear flats from coming back.
Single-hole punctures from sharp objectsSnakebite pinch flats and low pressure linksValve stem tears, leaks, and core failuresBead seating issues and blowout signsCombining tube clues with rider historyLesson 2Step-by-step rear wheel removal and reinstallation for city bikesMaster safe, easy rear wheel removal and put back for city bikes. You go handle chain, derailleur or hub gear, fenders, and brakes while making sure frame, cables, and customer things no damage.
Preparing bike, stand, and gear positionDisconnecting brakes and hub gear linkagesSafe chain and derailleur handlingCorrect axle placement in dropoutsAligning fenders and racks after refitLesson 3Preventive measures and customer advice: route choices, pressure checks, puncture-resistant tape and linersMake clear advice wey fit each rider proper. You go cover route choices, pressure checking habit, protective tapes and liners, and real maintenance time wey go cut down repeat flats and build trust with customer.
Advising on debris-heavy and clean route optionsTeaching simple weekly pressure checksUsing puncture-resistant tape and linersSetting realistic tire inspection intervalsExplaining trade-offs of extra puncture protectionLesson 4Visual and hands-on checks: tire, sidewall, valve, rim tape, and wheelLearn how to check tire tread, sidewalls, valve area, rim tape, and wheel structure step by step. You go practice mixing eye check with hand feel to find hidden damage and patterns wey dey cause repeat rear flats.
Reading tire tread wear and cut patternsSidewall cracks, bulges, and casing splitsValve base damage, leaks, and misalignmentRim tape coverage, holes, and displacementWheel trueness, dents, and spoke-related risksLesson 5Choosing correct tire pressure: recommended pressures, factors (rider weight, load, puncture resistance)Learn to pick rear tire pressure using maker range, rider weight, load, road type, and puncture danger. You go balance comfort, grip, and flat resistance, and write down recommended pressure for next time.
Reading sidewall pressure ranges correctlyAdjusting for rider weight and cargo loadPressure choices for city, gravel, and rough roadsBalancing comfort, grip, and puncture riskRecording baseline pressures on service ticketLesson 6Tools and materials list for flats: tire levers, pump with gauge, spare tubes, patch kit, rim tape, tire bootsBuild complete, fast flat repair kit for shop and road side. You go pick and care for levers, pumps, tubes, patch kits, rim tape, boots, and small extras wey stop delay when fixing recurring flats.
Choosing durable tire levers and sparesPump selection, gauges, and valve adaptersTube sizing, valve types, and storagePatch kits, glues, and instant patchesRim tape, tire boots, and emergency materialsLesson 7Repair options and decision criteria: patching vs replacing tube vs replacing tireCompare patching, change tube, and change tire using safety, cost, and strongness. You go learn when repair good enough, when to sell better for safety, and how to explain choices clear-clear.
Assessing tube damage and patchabilityEvaluating tire cuts, bulges, and exposed casingCost, reliability, and time trade-offsWhen to recommend full tire replacementExplaining choices clearly to the customerLesson 8Initial customer questions to identify flat context and historyPractice good questions to quick-quick know when, where, how flats dey happen. You go catch riding condition, load, tire age, and old repairs to guide fast check for recurring rear flats.
Opening questions about ride type and terrainClarifying when and how the flat appearedChecking tire age, mileage, and storageReviewing previous flat repairs and failuresRecording answers in clear service notesLesson 9Tire and tube selection for durability: puncture protection, tire width, tube valve typePick tires and tubes wey cut repeat flats but match bike and rider. You go compare puncture belts, widths, casings, and valve types, and learn to explain weight, feel, and cost trade-offs.
Comparing puncture protection layers and beltsChoosing tire width for load and comfortTube sizing and wall thickness choicesSchrader vs Presta vs Dunlop valve selectionMatching components to rim and frame clearanceLesson 10Safety checks before return: spin test, inflation check, quick-release/thru-axle security, short test rideDo final safety checks before give back bike. You go check bead seating, pressure steady, wheel straight, and axle tight, then do short test ride or stand test to make sure rear flat repair strong.
Spinning wheel to check wobble and rubConfirming even bead seating and no bulgesRechecking pressure after brief rest periodVerifying quick-release or thru-axle torqueShort test ride or stand test under loadLesson 11Wheel and rim inspection: rim strip, spoke ends, sharp edges, rim brake wearCheck wheel and rim for hidden causes of recurring flats. You go look rim strip cover, spoke ends, sharp burrs, dents, and brake wear, then decide to file, change parts, or suggest wheel rebuild.
Checking rim strip width and alignmentIdentifying sharp or protruding spoke endsFinding burrs, dents, and pinch pointsAssessing rim brake track wear and cracksDeciding on repair, replacement, or rebuildLesson 12Sequential diagnostic steps: inflate, locate leak, inspect tube and tire interiorFollow easy diagnostic steps: safe inflate, find leak place, and check tube and tire inside. You go connect leak spot to likely cause and decide when to keep looking for hidden sharp things.
Safe inflation on a repair standWater dunk and listening methods for leaksMapping tube leak to tire and rim positionsInspecting tire interior for glass and wiresDocumenting findings for recurring issues
