[{"data":1,"prerenderedAt":368},["ShallowReactive",2],{"radtype-en-trekking-bike":3,"radtype-eval-trekkingrad":315},{"id":4,"title":5,"applies_to":6,"author":8,"body":9,"confidence":295,"description":296,"extension":297,"faq":298,"meta":299,"navigation":300,"path":301,"seo":302,"sources":303,"stem":310,"test_bike":311,"topic":312,"updated":313,"__hash__":314},"content_en\u002Fen\u002Frad-typen\u002Ftrekking-bike.md","Converting a Trekking Bike to an E-Bike",[7],"all","fabio-gentsch",{"type":10,"value":11,"toc":283},"minimark",[12,16,21,24,28,70,73,77,123,127,183,201,205,252,256,263,267,270,274,277],[13,14,15],"p",{},"A trekking bike with standard dimensions is the easiest basis for a conversion. A 622 wheel, 100 mm hub spacing at the front and 135 mm at the rear, a derailleur and a down tube with room for the battery: front, rear and mid-drive motors all fit. With this bike the question is less \"does it work?\" than \"which motor suits you?\".",[17,18,20],"h2",{"id":19},"what-makes-a-trekking-bike","What makes a trekking bike",[13,22,23],{},"Trekking bikes usually have a diamond frame in aluminium or steel, 28-inch wheels (ETRTO 622), quick-release axles, 7 to 10 gears with a derailleur and often a rack and mudguards. Our example bike: aluminium, 16 kg, hydraulic rim brakes, 9-speed, 460 mm down tube.",[17,25,27],{"id":26},"what-usually-works","What usually works",[29,30,31,47,53,64],"ul",{},[32,33,34,38,39,46],"li",{},[35,36,37],"strong",{},"Hub spacing:"," 135 mm at the rear is the usual value for hub motors (",[40,41,45],"a",{"href":42,"rel":43},"https:\u002F\u002Ffahrrad-xxl.at\u002Fblog\u002Fe-bike-umbausatz",[44],"nofollow","Fahrrad XXL","), and 100 mm at the front.",[32,48,49,52],{},[35,50,51],{},"Derailleur:"," rear motors need a screw-on sprocket block or a cassette body, and the number of gears has to fit. Mid-drives keep using your gears.",[32,54,55,58,59,63],{},[35,56,57],{},"Bottom bracket:"," a 68 mm BSA shell fits the common mid-drives, see ",[40,60,62],{"href":61},"\u002Fen\u002Fknowledge\u002Fmeasure-bottom-bracket","Measure the bottom bracket",".",[32,65,66,69],{},[35,67,68],{},"Room on the down tube:"," frame batteries often need 35 to 45 cm, which is a rule of thumb. Our example bike has 46 cm.",[13,71,72],{},"For the example bike the configurator rates the front, rear and mid-drive motors green, and the verdict is \"convert\".",[17,74,76],{"id":75},"what-it-can-fail-on","What it can fail on",[29,78,79,95,101,111,117],{},[32,80,81,84,85,90,91,63],{},[35,82,83],{},"Brakes:"," mechanical rim brakes reach their limits with extra weight and speed, and hydraulic disc brakes are best (",[40,86,89],{"href":87,"rel":88},"https:\u002F\u002Fwww.giga.de\u002Ftech\u002Fwer-billig-kauft-kauft-zweimal-diese-fehler-solltet-ihr-vermeiden-wenn-ihr-eurer-fahrrad-zum-e-bike-umbaut--01K0YYJEVGW05AE9TTBCPW0DAM",[44],"GIGA","). With hydraulic brakes you usually need a magnetic sensor for the motor cut-off, see ",[40,92,94],{"href":93},"\u002Fen\u002Fknowledge\u002Fbrakes","Brakes",[32,96,97,100],{},[35,98,99],{},"Carbon:"," a carbon frame is not a suitable candidate.",[32,102,103,106,107,63],{},[35,104,105],{},"Weight:"," kit and battery often weigh 6 to 8 kg. Check the permitted total weight of the bike and the rack, see ",[40,108,110],{"href":109},"\u002Fen\u002Fknowledge\u002Fframe-and-weight","Frame and weight",[32,112,113,116],{},[35,114,115],{},"Wear parts:"," replace an old chain, sprockets and tyres first, especially before a mid-drive, which puts more load on chain and sprockets.",[32,118,119,122],{},[35,120,121],{},"Small frame:"," the battery does not always fit in the frame triangle. Measure before you order.",[17,124,126],{"id":125},"which-motor-type-fits","Which motor type fits",[128,129,130,146],"table",{},[131,132,133],"thead",{},[134,135,136,140,143],"tr",{},[137,138,139],"th",{},"Motor type",[137,141,142],{},"Fits if …",[137,144,145],{},"Catch",[147,148,149,161,172],"tbody",{},[134,150,151,155,158],{},[152,153,154],"td",{},"Mid-drive",[152,156,157],{},"you ride hills and want a natural feel",[152,159,160],{},"more work to fit, more wear on chain and sprockets",[134,162,163,166,169],{},[152,164,165],{},"Rear motor",[152,167,168],{},"you want good traction and your gearing fits",[152,170,171],{},"check cassette and gear count, a rear puncture is more work",[134,173,174,177,180],{},[152,175,176],{},"Front motor",[152,178,179],{},"you want it simple and cheap",[152,181,182],{},"weight at the front, steering feel, fork has to carry it",[13,184,185,186,191,192,196,197,63],{},"For the example bike (15 km a day, 150 m of climbing) the configurator recommends the mid-drive. Upway names the most natural ride feel and plenty of power on hills as advantages (",[40,187,190],{"href":188,"rel":189},"https:\u002F\u002Fupway.de\u002Fblogs\u002Fnews\u002Ffahrrad-zum-e-bike-umbauen",[44],"Upway","). The comparison in detail: ",[40,193,195],{"href":194},"\u002Fen\u002Fknowledge\u002Fmid-drive-vs-hub-motor","Mid-drive vs hub motor"," and ",[40,198,200],{"href":199},"\u002Fen\u002Fknowledge\u002Fmotor-types","Motor types",[17,202,204],{"id":203},"what-to-measure-first","What to measure first",[206,207,208,216,226,236,246],"ol",{},[32,209,210,213,214,63],{},[35,211,212],{},"Bottom bracket shell"," and bracket type, see ",[40,215,62],{"href":61},[32,217,218,221,222,63],{},[35,219,220],{},"Hub spacing at the rear and front",", see ",[40,223,225],{"href":224},"\u002Fen\u002Fknowledge\u002Fhub-spacing","Hub spacing",[32,227,228,231,232,63],{},[35,229,230],{},"Rim size"," on the tyre, see ",[40,233,235],{"href":234},"\u002Fen\u002Fknowledge\u002Fwheel-sizes","Wheel sizes",[32,237,238,241,242,63],{},[35,239,240],{},"Room on the down tube"," for the battery, see ",[40,243,245],{"href":244},"\u002Fen\u002Fknowledge\u002Fbattery","Battery",[32,247,248,251],{},[35,249,250],{},"Cassette:"," number of gears and mount (screw-on or freehub body).",[17,253,255],{"id":254},"the-law-in-short","The law in short",[13,257,258,259,63],{},"Pedelec means: at most 250 W rated continuous power, assistance only while you pedal, up to 25 km\u002Fh. A throttle is only allowed as a walking aid up to 6 km\u002Fh, anything above is a motor vehicle. See ",[40,260,262],{"href":261},"\u002Fen\u002Fknowledge\u002Fpedelec-law","Pedelec law",[17,264,266],{"id":265},"when-you-should-leave-it","When you should leave it",[13,268,269],{},"Leave it if your bike is carbon, the frame has cracks or heavy corrosion, or the brakes are already poor without a motor and you do not want to replace them. With a very cheap bike, where kit and brakes cost more than the bike is worth, a used e-bike is often the better bet. The manufacturer's warranty mostly lapses, and some workshops refuse conversions.",[17,271,273],{"id":272},"how-sure-is-this","How sure is this?",[13,275,276],{},"The statements on hub spacing, brakes, weight and warranty come from the sources listed. The battery's space needs, wear on a mid-drive and the weighing of motor types are assumptions and rules of thumb that Fabio is still checking. The assessment of the example bike comes from our configurator.",[13,278,279],{},[40,280,282],{"href":281},"\u002Fen\u002Fconfigurator","Does a conversion fit your bike?",{"title":284,"searchDepth":285,"depth":285,"links":286},"",2,[287,288,289,290,291,292,293,294],{"id":19,"depth":285,"text":20},{"id":26,"depth":285,"text":27},{"id":75,"depth":285,"text":76},{"id":125,"depth":285,"text":126},{"id":203,"depth":285,"text":204},{"id":254,"depth":285,"text":255},{"id":265,"depth":285,"text":266},{"id":272,"depth":285,"text":273},"assumption","The trekking bike is the normal case for a conversion: almost any motor type fits. What to measure, where it snags and when to leave it.","md",null,{},true,"\u002Fen\u002Frad-typen\u002Ftrekking-bike",{"title":5,"description":296},[304,306,308],{"title":305,"url":42},"Fahrrad XXL: e-bike conversion kit (German)",{"title":307,"url":87},"GIGA: mistakes when converting to an e-bike (German)",{"title":309,"url":188},"Upway: convert a bike to an e-bike (German)","en\u002Frad-typen\u002Ftrekking-bike","trekking-standard","trekkingrad","2026-11-09","H-A9rtroO0t3msaZE1oh3z2So-8dPnzXe-_ozZ33iWE",{"name":316,"profile":319,"recommended":340,"verdict":341,"motors":342,"top":351},{"de":317,"en":318},"Alu-Trekkingrad, Standardmaße","Aluminium trekking bike, standard sizes",{"goal":320,"daily_km":321,"elevation_m":322,"budget_eur":323,"frame_type":324,"frame_material":325,"wheel_etrto":326,"front_spacing_mm":327,"rear_spacing_mm":328,"front_axle":329,"rear_axle":329,"bb_shell":330,"brakes":331,"drivetrain":332,"rear_cogs":333,"suspension_fork":334,"battery_space":335,"downtube_length_mm":336,"max_total_weight_kg":337,"rider_weight_kg":338,"bike_weight_kg":339},"commute",15,150,1000,"diamond","aluminium",622,100,135,"qr","bsa_68","rim_hydraulic","derailleur",9,false,"downtube",460,140,80,16,"mid","convert",[343,345,347,349],{"mt":340,"status":344,"finding":298},"green",{"mt":346,"status":344,"finding":298},"rear_hub",{"mt":348,"status":344,"finding":298},"front_hub",{"mt":350,"status":344,"finding":298},"friction",[352,358,363],{"rule":353,"status":354,"message":355,"fix":298},"mid-chain-wear","info",{"de":356,"en":357},"Mittelmotoren fressen Ketten: E-Bike-Kette nehmen und nicht unter Volllast schalten.","Mid-drives eat chains: use an e-bike chain and don't shift under full load.",{"rule":359,"status":354,"message":360,"fix":298},"warranty-lost",{"de":361,"en":362},"Die Gewährleistung des Fahrradherstellers entfällt nach dem Umbau meist.","The bike maker's warranty usually ends after the conversion.",{"rule":364,"status":354,"message":365,"fix":298},"worn-parts-first",{"de":366,"en":367},"Verschlissene Teile (Kette, Bremsbeläge, Reifen) vor dem Umbau erneuern.","Replace worn parts (chain, brake pads, tyres) before the conversion.",1794249628591]