Curtis AM Explorer

27.5+, adventure ready!

The Curtis AM Explorer comes with a 73mm bottom bracket shell and a 148mm boost rear end, which gives the perfect 1×11 chain line whist keeping the chain well away from even the biggest tyres. We also offer a 150mm rear axle option, accompanied by an 83mm bottom bracket shell as shown here, also offering a perfect chain line for 1×11.

The chainstays have a huge gap between them, with ample clearance for 3″ tyres. Shown below is the beautifully machined Paragon yoke alongside the Reynolds 853 and Columbus tube set.

The AM Explorer shown here is a factory geometry model, built for a 120mm fork with a 66.5 headtube angle. Like all of our frames, the AM Explorer is also available with custom geometry to suit your needs so if you want to run a 140–150mm fork or tweak the headtube angle that’s not a problem.

Other options are standard or stealth dropper post routing, personalised frame number stamping, and even frame height and top tube length adjustment to the mm…

Prices (frame only)

Prices shown are for our own tried and tested geometry, or your own custom geometry at no extra cost. Rack & bottle mounts are also available at no extra cost.

Standard paint: £1,550
Translucent red or blue: £1,600
Polished & clear coat: £1,700

Dropout options

Paragon: Standard Mount
12mm x 148mm or 150mm*
Standard mech hanger
Fitted as standard

Curtis Sliding: Direct Mount
12mm x 148mm or 150mm*
Comes with a titanium bolt kit
+ £100

* 150mm rear axle setup must use an 83mm bottom bracket shell. Please let us know at time of ordering.


Here is a list of the Ral colours we offer, custom colours are also available.

  • Grey:  7015
  • Brown: 8001
  • Blue(s): 5024, 5002, 5015
  • Green(s): 6018, 6009,6019
  • Red(s):  3003, 3001, 3013
  • Purple: 4004
  • Yellow: 1007

View them on the Ral colour chart.

Our polished and clear coat finish is £150 extra, this hand polished finished takes a day to achieve and is finished with a clear powered coat which is tough as nails.

Sizes & Geometry

H/T ANGLE65.565.565.565.565.565.5
B/B DROP-52-52-52-52-52-52
B/B HEIGHT298298298298298298


The AM Explorer is available in two suspension travel options:

  • 120–130mm travel fork
  • 140–150mm travel fork

Frame weight for a 17.5″ = 4.14lbs/2.26kg.
Bottom bracket height of 11.9″ is with a 2.8″ tyre.
All geometry is static with no sag.

Please ring for details.