Synapse Disc Tiagra Alloy Endurance Road Bike (2019)


Regular price £876.32 Sale price £999.99

The Cannondale Synapse Alloy is the perfect partner for anyone wanting all-day rideability mixed with raw power. It has race proven low weight and stiffness courtesy of the SMARTFORM ALLOY whilst the endurance geometry and smooth ride makes it the best all-rounder and a class leader for endurance bikes.

When designing the Synapse Alloy, the design engineers at Cannondale implemented a system called S.E.R.G (Synapse Endurance Race Geometry) Putting the rider in the position that balances race-efficiency and handling with a slightly more upright position. Far more ideal for long days in the saddle or for better comfort on all surfaces.

Key Product Features

  • S.E.R.G (Synapse Endurance Race Geometry)
  • SMARTFORM ALLOY is Cannondale’s premium 6069 and 6061 alloy tubing
  • Double Pass weld technology makes a smoother, stronger joint
  • SPEED SAVE found throughout the frame boosts compliance
  • Shimano Tiagra 10 Speed Group set
  • Synapse Alloy Tiagra Spec Chart

      • FRAME
        Synapse Disc Asymmetric, SmartForm C2 Alloy, SAVE, BB30, flat mount
      • FORK
        Synapse Disc Asymmetric, SAVE, Full Carbon, 1-1/8" - 1 1/4" tapered steerer, flat mount, 55mm rake, 12x100 thru axle
      • HUBS
        Formula, DC-1420 12x100 front, DC-1422 rear
      • SPOKES
        Stainless Steel, 14g
      • RIMS
        RD 3.0, 28h
      • FRONT TYRE
        Vittoria Zaffiro, 700 x 28c
      • REAR TYRE
        Vittoria Zaffiro, 700 x 28c
      • CRANKSET
        FSA Omega Alloy, 50/34
      • Bottom Bracket
        FSA MegaExo
        Shimano Tiagra, 2x10
        Shimano Tiagra, braze-on
        Shimano Tiagra GS
      • CASSETTE
        Shimano HG500, 11-34, 10-speed
      • CHAIN
        KMC X10, 10-speed
        Shimano Tiagra
        Promax Decoder R cable actuated disc, 160/160mm
      • REAR BRAKE
        Promax Decoder R cable actuated disc, 160/160mm
        Cannondale C4, 6061 Alloy, Compact
      • GRIPS
        Cannondale Bar Tape w/Gel, 3.5mm
      • STEM
        Cannondale C4, 6061 Alloy, 31.8, 7 deg.
      • SADDLE
        Cannondale Stage Ergo
      • SEATPOST
        Cannondale C3, 6061 Alloy, 25.4 x 350mm (44-56), 400mm (58-61)
      • PEDALS

    Synapse Size Chart

    Frame Size Rider Height Inside Leg
    44 cm <152 cm <68 cm
    48 cm 152 - 162 cm 68 - 74 cm
    51 cm 163 - 166 cm 75 - 78 cm
    54 cm 167 - 175 cm 79 - 82 cm
    56 cm 176 - 180 cm 83 - 85 cm
    58 cm 181 - 187 cm 86 - 89 cm
    61 cm 188 - 194 cm 90 - 93 cm

    Size of frame may not always be covered or applicable

Free Delivery

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We're able to ship orders placed before 3pm on weekdays that same day when upgraded to either our DPD Next Day or DPD Saturday Delivery, otherwise delivery is FREE on orders over £40 with our economy delivery option, we aim to ship orders placed before 10am on weekdays that same day with delivery expected within four working days.

Tracking is provided upon dispatch and you can opt for order updates to be sent to you via Facebook Messenger if you would prefer this.

Please see our Delivery Information page for further details.


  • Economy Delivery
    Delivery typically within four working days
    FREE on orders over £40 otherwise £1.95
    Fully tracked and may require a signature
  • Next Day Delivery
    Delivery next working day
    Order before 15:00 for same day shipping
    £2.95 per order
    Mainland UK only
  • Saturday Delivery
    £8.95 per order
    Available until 15:00 on Friday
    Mainland UK only
  • Freight Delivery
    FREE on orders over £500
    £29.95 on orders under £500
    Order before 12:00 for same day shipping
    Delivery typically the next working day
    Mainland UK only

Free Returns

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We want you to be 100% happy with your purchase from us here at Scotby Cycles which us why we’re one of only two or three bike shops (and as far as we're aware the only independent bike shop) which offer free returns on all accessories and clothing.

If an item doesn't fit, or isn't quite what you expected then simply email support@scotbycycles.co.uk with your order ID and ask for a returns number, once approved we’ll provide you with a free Royal Mail Tracked label so you can send us your returns completely free of charge from any Post Office branch within 30 days of purchase.

Please see our returns policy for full details.


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