1 miles
1 ft
-646 ft
722 ft
High Point

Whop-a-chang Details

  • Riding area
  • Difficulty rating
  • Trail type
  • Bike type
    AM, XC
  • Trail Usage
    Biking Only
  • Direction
    Downhill Only
    Popular direction shown
  • Physical rating
  • eBike Allowed
  • TTFs on trail
    Jump, Gap Jump, Rock Face, Rock Garden
  • Global Ranking

Whop-a-chang!!! It's the sound your bike makes as you're pinged off the myriad of rim-eating embedded rocks that dominate this trail's surface.

While the gradient is generally lower than the other Bells trails, don't expect to relax! You want to be on it to pick your way through the rock gardens, fold yourself into blind corners, nimbly dodge the trail-hogging grass trees, send (or dodge) primitive gap jumps and slap rustic catch-berms.

Whoppa can be ridden on any type of bike if you take it easy but bring your Enduro plough and a spare tyre if you're gonna attempt a sub-5min!

There are a number of blind gap jumps that can be easily avoided if necessary and the final descent to the river is the steepest part of the trail. This can be dodged (recommended for XC bikes) by following the B-line back to the park boundary (west). You will see this less-utilised track winding off to your right just from the top of the chute.

Whop-a-chang rewards those who've committed it to memory and it's not unheard of for riders to spend their whole Bells-ride doing Whoppa repeats.

Access Info

Ride to the highest point of Mt Mambup then cross the grass to the slab of rock that marks the common trail head for Rapids Ahoy, Savage Bliss, Train Spotting and Whop-a-Chang. An old fence has been flattened by animals here.

This trail is Unsanctioned, Ride at your own Risk!


This trail is unsanctioned. Be respectful to all residents and users of the area. Please promote the good vibes of mountain biking at all times!

More Stats for Whop-a-chang mountain bike trail
  • Altitude change
    -675 ft
  • Altitude min
    45 ft
  • Altitude start
    720 ft
  • Altitude end
    46 ft
  • Grade
  • Grade max
  • Distance down
    1 miles
  • Distance flat
    683 ft
  • view trail stats
on Jan 21, 2018
Very Dry
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Layers winter
Trail Style
  • ?
Trail Conditions
  • Unknown
  • Snow Packed
  • Snow Covered
  • Freeze/thaw Cycle
  • Icy
  • Prevalent Mud
  • Wet
  • Variable
  • Dry
  • Very Dry
Directions to whopachang trailhead (-31.760534, 116.058232)
update trails status or condition

Whop-a-chang Trail Reports

Jan 21, 2018 @ 9:26pm
Jan 21, 2018
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6:52 | 86 | Jan 23, 2018 , Perth
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