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Length (up to hrs)Length (up to/over km)Ascent in m (based on 200m per hour)Steepness off-road climbingSteepness on-road climbingDownhill steepness off-roadDownhill steepness on roadFitness level (Komoot)Difficulty/Riding skills (Komoot)Sections without obvious pathSingletrack sections (Komoot)Max distance from public roadsMax distance between servicesMax altitudeHighland Perthshire Trails
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Easy220400up to 10%up to 10%up to 15%up to 15%xxnoneS0 to S1up to 5kmup to 10kmup to 300mDunkeld Hermitage Loop
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Straightforward330600up to 12%up to 15%up to 15%up to 20%xxxxnoneS0 to S1up to 10kmup to 20kmup to 400mDunkeld Lochs Loop, Blair Atholl Gravel Adventure
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Challenging5501000up to 15%up to 20%up to 20%up to 20%xxxxup to 1kmS0 to S2up to 20kmup to 25kmup to 650mDuntanlich Weekend Grinder, Blair Atholl Bothy Trip, Aberfeldy Gravel Tour, Aberfeldy Grand Tour
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Expertover 5over 50over 1000over 15%over 20%over 20%over 20%xxxxxxover 1kmS0 to S2over 20kmover 25kmabove 650mDunkeld Lochs Loop, Cairngorms Grand Tour, Grand Tour of Rannoch, Grand Tour of Comrie
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