ROCKRIDER+E-bike+900

Features

Design+benefits

autonomyRide+for+up+to+68+kmpower70+Nm+torque+and+500+W+max+power+central+motorsmooth+pedallingThe+built-in+motor+automatically+assists+you+when+needed.+Perfect+for+MTBing.controlEnjoy:+raised+position.+120+mm+suspension.+very+wide+tyres.+Ergofit+saddle.

Design+details

WHAT+SIZE+MOUNTAIN+BIKE+TO+CHOOSE?Please+note.+for+size+S.+the+minimum+height+is+1.60+m+and+not+1.50+m+as+indicated+in+the+drop-down+menu+grid.+If+you+are+on+the+edge+between+2+sizes:+Choose+the+smaller+size+for+easier+steering+(easier+to+handle)+and+comfort+(straighter+back).+Choose+the+larger+size+for+easier+pedalling+with+a+more+stretched+out+position+(position+more+suited+to+performance)IS+ELECTRIC+MTB+A+SPORT?You+have+to+pedal+to+go+forward!+The+electric+assistance+boosts+your+pedalling+by+320%.+helping+you+ride+over+obstacles.+You’ll+get+to+enjoy+longer+MTB+rides.+The+motor+stops+when+you+stop+pedalling.+The+walking+mode+compensates+for+the+weight+of+the+bike+when+you+need+to+put+your+feet+down.A+WORD+FROM+THE+TEAMOur+team+of+mountain+bike+enthusiasts+created+this+E-ST+900+electric+mountain+bike+at+our+B’Twin+Village+in+Lille.+France.+We+designed+and+tested+the+E-ST+900+MTB+by+involving+MTB+riders+at+every+stage+of+the+project.STURDY.+PLAYFUL+FRAMEThe+frame+of+the+Rockrider+E-ST900+electric+MTB+is+made+of+6061+aluminium+with+hydroformed+tubes.+Why?+The+battery+sits+snugly+on+the+frame+to+improve+the+robustness+of+this+electric+mountain+bike.+The+forged+aluminium+parts+make+it+compatible+with+the+new+27.5++tyre+format+(wider+than+the+27.5)+in+the+rear.+while+remaining+easy+to+manoeuvre.+We’ve+kept+a+frame+geometry+with+short+bases+for+easier+steering.MOTOR+WITH+70NM+TORQUEThe+BROSE+T+Aluminium+central+motor+is+specially+designed+for+high+altitude+mountain+biking:+-+70+Nm+torque+to+handle+large+obstacles+and+steep+gradients+-+metal+housing+for+maximum+durability+-+belt+for+an+ultra-quiet+motor+-+and+sealed+bearings+to+withstand+the+sometimes+adverse+weather+conditions+of+mountain+bikingSAMSUNG+BATTERY+CELLSOur+battery+is+equipped+with+SAMSUNG+SDI+cells.+renowned+for+their+high+level+of+reliability+and+safety.BATTERY+LOCKOur+Rockrider+mountain+bike+team+has+designed+a+battery+that+locks+in+place+with+a+simple+lever.+Child’s+play!+This+locking+system+prevents+the+battery+vibrating+when+riding+on+rough+terrain.+A+key+lock+is+also+installed+if+you+want+to+protect+your+battery+from+theft.+For+example.+if+you+park+your+bike+in+the+street.CONTROL+SCREENA+discreet+LCD+control+screen.+The+screen+is+right+next+to+your+left+grip+so+you+don’t+have+to+let+go+of+the+handlebar+to+choose+from+the+4+assistance+modes+available:+Eco+.+Economy.+Standard.+Boost.+You’ll+also+find+a+host+of+useful+information:+-Assistance+level+-Battery+level+-Speed+(current.+average.+maximum)+-Remaining+battery+life+-Distance+covered+(total+and+trip)4+ASSISTANCE+MODESMode+0+-+Deactivated+The+battery+is+not+used.+Mode+1+-+Economy++40%:+Extend+your+rides+while+conserving+battery+life.+Ideal+when+you+want+a+little+push+on+small+gradients.+Mode+2+-+Economy++80%:+Gain+power.+A+perfect+helping+hand+for+keeping+up+with+other+mountain+bikers.+Mode+3+-+Standard++160%:+This+is+the+most+versatile+mode.+Climb+any+slope+without+getting+too+tired+and+without+using+too+much+power.+Mode+4+-+Boost++320%ROCKSHOX+FRONT+SUSPENSIONRide+over+obstacles+(roots.+pebbles.+stones.+etc.)+easily+thanks+to+the+Rockshox+JUDY+fork+with+120+mm+of+travel.+This+fork+has:+-+a+thru+axle+and+conical+pivot+for+more+durability.+-+pneumatic+spring+for+optimal+adjustment+based+on+your+weight+-+rebound+adjustment+and+lockout+for+better+control.+depending+on+the+terrain.SINGLE+CHAINRING+DRIVETRAINThe+E-ST900+electric+bike+is+equipped+with+a+single+chainring+and+ChainFlow+3D+anti-drop+technology+to+prevent+chain+drops.+A+single+shifter+on+the+right+handlebar+makes+it+easy+to+shift+between+the+10+speeds.+In+detail:+-+ChainFlow+anti-derailment+34-tooth+chainring+-+SHIMANO+DEORE+M6000+Shadow++10-speed+rear+derailleur+with+long+cage+-+SHIMANO+DEORE+M6000+right+shifter+-+SHIMANO+DEORE+10-cog+cassette+(11-42+teeth)+-+KMC+E10+Turbo+special+e-bike+chain27.5++Sunringle+Duroc+40+WheelsThese+wheels+were+specially+designed+for+this+mountain+bike:+-+36+mm+rims+(width+between+brackets)+and+32+spokes+at+the+front+and+rear+for+greater+durability+and+a+good+hold+on+wide+(2.8)+tyres.+-+BOOST+format+thru+axles+(12×148+rear.+15×110+front)+for+greater+durability+-+Aluminium+hubs+with+sealed+bearings.+-+TUBELESS+READY+rims:+you+will+need+TUBELESS+tyres.+specific+Presta+valves.+and+puncture+sealant.HUTCHINSON+TYRESSo+you+feel+safe+on+any+terrain.+and+to+provide+traction+suited+to+your+motor.+the+E-ST900+mountain+bike+is+equipped+with+Hutchinson+Taipan+Koloss+27.5++tyres+with+a+2.8+cross-section.+Our+test+riders+particularly+liked+these+tyres+for+their+grip+on+the+ground.+Mounted+on+wide+rims.+these+tyres+ensure+grip.+traction.+and+comfort+on+any+terrain.HYDRAULIC+DISC+BRAKESNo+matter+the+conditions+you+ride+in+(dry.+muddy.+wet).+the+Tektro+TKD32+hydraulic+disc+brakes+on+the+front+and+rear+provide+powerful.+progressive+braking.+Oversized+180mm+diameter+discs+provide+even+more+power.HANDLEBARS.+STEM.+GRIPSThe+adjustable+stem+brings+the+E-ST+900+controls+to+your+hands.+The+all-aluminium+Rockrider+stem+is+70+mm+(size+S).+80+mm+(size+M/L).+or+90+mm+(size+XL)+and+can+be+raised+to+5+adjustment+intervals:+++0mm.+++7.5mm.+++15mm.+++22.5mm.+++30mm.+In+detail:+-+720mm+oversize+ROCKRIDER+SPORT+aluminium+handlebar+-+ROCKRIDER+SPORT+soft+touch+ergonomic+grips+for+good+grip+and+a+comfortable+feelSaddleSince+your+mountain+bike+rides+will+get+longer+and+longer.+it+is+important+to+sit+comfortably.+So+our+teams+designed+the+exclusive+ROCKRIDER+Ergofit+Pro+saddle.+It+fits+all+hip+sizes+and+has+a+curved+shape+that+is+particularly+good+for+sport+trail+rides.+The+31.6+mm+aluminium+seat+post+ensures+compatibility+with+most+adjustable+and+suspended+seat+posts+on+the+market.Platform+pedalsThe+bike+comes+with+520+Grip+MTB+platform+pedals+(ref.+8487130)+with+a+wider+pedalling+surface+and+more+pronounced+dots+for+better+grip+on+the+pedal.However.+if+you+are+looking+for+improved+performance+when+pedalling+and+better+control+of+the+bike+when+cycling.+we+recommend+replacing+them+with+clipless+pedals+with+platforms+or+wide+aluminium+platform+pedals.AccessoriesYour+E-ST900+mountain+bike+is+fitted+with+a+bell.+lights.+wheel+reflectors+and+pedals.+The+frame+is+compatible+with:+-+front+and+rear+mudguards+-+stand+-+bottle+cage+(on+the+horizontal+tube)+-+saddle+pouch+-+rear+pannier+rack+(fixed+onto+the+seat+stays+or+special+mounts+for+wide+bikes.+148+mm+gap+for+the+rear+wheel+&+2.8+fat+tire)+-+child+seat+…OUR+ADVICE+FOR+YOUR+FIRST+RIDESTip+no.1+When+mountain+biking.+there+is+always+the+risk+of+a+fall:+don’t+forget+to+wear+a+helmet.+Tip+no.+2+A+puncture+could+happen+at+any+time.+so+always+remember+to+take+a+repair+kit+and+a+6+mm+Allen+key+for+removing+your+wheels.+Tip+no.3+If+you+don’t+want+to+stop+to+drink.+bring+water+in+a+bottle+or+water+bladder+to+access+it+while+riding.Care+adviceLeave+your+battery+on+the+bike+when+washing+using+a+hose.+This+will+protect+the+connectors+from+rusting.

Specifications

Details