Cannondale Slate 105 gravel bike

Out-of-the-box Cannondale Slate 105, image courtesy of Cannondale

Gravel bike gearing

Gravel bike gear choice is a careful selection process wherever you ride. All gravel roads are not created equally and, given southern Spain’s undulating terrain, which can soar up above 3,000 m/9,843 ft at grades from 5-19 percent, gear choice has a dramatic influence on where and how long you can ride.

While I love the Lefty Oliver fork with 30 mm of travel on my stock 2016 Cannondale Slate, the 52/36 chainrings and 650b 42 mm treadless tires conspired to stop me on both seated and standing climbs. This set-up also limited my ride choices to the valley south of Granada or the base foothills of the Sierra Nevadas since climbing anything higher or steeper was like pushing cinder blocks. Cannondale has since released two new versions of the Slate gravel bike that feature 1x systems from SRAM and WTB Resolute 650×42 tires with enough tread to grip unreliable surfaces but to roll fast on asphalt as well.

Now it’s an ideal gravel bike for Granada

To transform my Slate into a gravel bike geared for Granada, I stripped the crankset and installed Rotor Bike Components 3D+ cranks with a 46/30 Spidering, which has made climbing a whole lot easier but more importantly, the sub-compact gearing has broadened my ride options to include gravel roads that go up fast and hard.

WTB Resolute tires are perfect for gravel riding

WTB Resolute 650bx42 tires for gravel

Just this week I received a set of WTB Resolute tires and not a moment too soon because the current tires were leaking air and needed to be pumped up daily. Also, the rainy season is coming and treadless tires combined with wet sidewalk tiles (or any wet surfaces) would be treacherous.

One more thing that I love about the Slate is the commitment to 650b wheels, however as of writing this post, tire options are limited so thank you WTB for seeing a future in gravel tires for 650b wheels!

Full bike specs:

  • FRAME: Slate SmartFormed 6069 Alloy Di2 ready SAVE PLUS, BB30a
  • FORK: Cannondale Lefty Oliver Carbon, with PBR 30mm Travel, 45mm offset
  • HEADSET: Tange Seiki Head Shock Integrated
  • STEM: Cannondale C1 6061 Alloy, 1.5 31.8, -5 degrees, 100mm
  • HANDLEBARS: Cannondale C3 butted 6061 Alloy Butted 6061 Alloy Compact
  • GRIPS: Cannondale Grip Bar Tape with Gel, 2.5 mm
  • FRONT BRAKE: Shimano BR785, 160 mm
  • REAR BRAKE: Shimano BR505, 140 mm
  • FRONT DERAILLEUR: Shimano 105 5800, 31.8 Clamp on
  • REAR DERAILLEUR: Shimano 105 5800
  • SHIFT LEVERS: Shimano R505 Hydraulic Disc
  • CASSETTE: Shimano 105 5800, 11-28, 11-speed
  • CHAIN: Shimano HG600-11, 11-speed
  • CRANKSET: Rotor Bike Components 3D+, 172.5 mm, 46/30 Spidering
  • BOTTOM BRACKET: FSA BB30 bearings
  • RIMS: Slate Disc 650b 28H welded
  • FRONT HUB: Lefty 50 Road
  • REAR HUB: Formula 142 x 12 mm thru rear 28h
  • SPOKES: DT Swiss Champion
  • FRONT TIRE: WTB Resolute 650x42c
  • REAR TIRE: WTB Resolute 650x42c
  • SADDLE: Fabric Scoop Radius Sport Cromo Rails
  • SEATPOST: Cannondale C3 Alloy, 27.2 x 350 mm

Read about “His” gravel bike set-up for Granada here.