Curtis DHHT

Our infamous downhill hardtail

The Curtis DHHT (Downhill Hardtail) frame is all team rider Ash Brown’s fault… There aren’t many riders who are crazy enough or more to the point skilful enough to take a hard tail down a downhill run… Ash is one of this rare breed, and had destroyed every frame he had ridden before… so Gary and Brian thought they’d better make him something special…

The DHHT was designed specifically for racing downhill, with a super-slack head angle and a head tube positioned in the jig for a 150mm / 160mm fork. The DHHT has a nice long 16.75″ chainstay length for a stable back end feel when travelling at full tilt down the steepest of sections.

Also available is our 27.5″ (650B) version of the DHHT… yum yum!

Prices (frame only)

Prices shown are for our own tried and tested geometry, or your own custom geometry at no extra cost. All DHHT frames are 12″ high as standard and sizes are based on top tube lengths only. Customisation options on this frame are limited to top tube length and head tube angle.

From: £995.00

Dropout options

Paragon: Standard Mount
12mm x 142mm or 148mm
Standard mech hanger
Fitted as standard

Paragon: Direct Mount
12mm x 142mm or 148mm
Direct mount mech hanger
Fitted as standard


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.

Size & Geometry Chart

NB: All DHHT frames are 12″ as standard, and sizes are based on top tube length.

DHHT Small Medium Large
Frame size 12″ 12″ 12″
Actual Top Tube 21.75″ 22.25″ 23″
Head Tube Length 100mm 110mm 110mm
Head Tube Angle 63 63 63
Seat Tube Angle 73 73 73
Chainstay Length 16.75″ 16.75″ 16.75″
Bottom Bracket Height 12.75″ 12.75″ 12.75″

The DHHT is designed for a 150mm / 160mm fork.
Frame weight for a Medium = 5.7lbs/2.58kg.
All geometry is static with no sag.