Steilacoom RCX

The Thoroughbred of Cyclocross has arrived and you get to ride it. The Diamondback Steilacoom RCX will take you across the finish line, but you have to remember to stop. The fully butted alloy frame with a formed top tube for easy portage and an integrated head tube is sturdy enough for the abuse that Cyclocross brings and the carbon fork saves weight without loosing performance. Throw in the FSA Gossamer Pro Cross cranks and the Shimano 105 10-speed components and this pony is ready to run with the best of them. If you’re ready to take your riding to the next level mount up on a Steilacoom RCX.


  • Diamondback CX fully butted 7005 alloy Competition Cyclocross geometry with a formed top tube and integrated head tube
  • Easton EC-70X carbon fork with alloy steerer
  • Shimano 105 derailleurs and dual control 10-speed shifters
  • FSA Gossamer PRO Cross cranks, 46/36t
  • 20 spoke front & 24 spoke rear wheels with sealed bearing hubs and Equation CX20 alloy rims

Bike Specs

Sizes 50cm  53cm  56cm  59cm 
Frame DBR CX Fully Butted 7005 Alloy Competition Cyclocross Geometry, Formed Top tube w/integrated Headtube
Fork Easton EC-70X Carbon w/Alloy Steerer
Rear Shock N/A
Cranks FSA Gossamer PRO Cross BB30 46,36t
Bottom Bracket BB30
F. Derailleur Shimano 105, 31.8
R. Derailleur Shimano 105 10spd
Shifter Shimano 105 Dual Control 10spd
Brake Levers Shimano 105 Dual Control 10spd
Brakes AVID Shorty 4 canti
Cassette Shimano CS-5700 105 10spd (12-27t)
Rims 20h frt / 24h rear Equation CX20
Tires Michelin Cyclocross Mud 2 700x30
Pedals test ride
Handlebar DBR Drop Bar Road 31.8
Stem DBR 3D forged, +/-7 degree rise 31.8
Seatpost DBR Performance Post, Alloy Micro Adjust 27.2mm
Seat DBR Performance Road
Headset Integrated "Cane Creek" Size Drop-in ACB 1 1/8"
Colors Black
Chain Shimano 105 10spd
Hubset (F) 20H Alloy, Sealed Bearing QR (R) 24H Alloy, Sealed Bearing, Cassette, QR
Spokes White 14g Stainless Steel
Grips DBR Cork w/Gel
Extras Owner’s manual, Chainstay Protector, Clear Coat, H20 bottle mounts
Note Specifications Subject to Change


Size 50cm 53cm 56cm 59cm
Seat Tube Length ** 500.0mm 530.0mm 560.0mm 590.0mm
Standover Height 755.0mm 777.0mm 807.0mm 838.0mm
Top Tube Length * 525.0mm 540.0mm 560.0mm 580.0mm
Head Tube Length 100.0mm 120.0mm 155.0mm 180.0mm
Head Angle 71.0° 72.0° 72.3° 73.0°
Seat Angle 75.0° 74.0° 73.0° 73.0°
Wheel Base 1000.0mm 1005.0mm 1011.0mm 1027.0mm
Chain Stay Length 425.0mm 425.0mm 425.0mm 425.0mm
Fork Offset 45.0mm 45.0mm 45.0mm 45.0mm
BB Height 265.0mm 265.0mm 265.0mm 265.0mm
Stem Length 80.0mm 90.0mm 100.0mm 110.0mm
Handlebar Width 420.0mm 420.0mm 440.0mm 440.0mm
Crank Length 170.0mm 172.5mm 172.5mm 175.0mm
Seat Post Length 300.0mm 300.0mm 300.0mm 300.0mm
* Measured Horizontally ** Measured from Center