Cannondale  Synapse Alloy 105 5 Disc Bike - 2015

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Love long rides? Looking to pick up the pace? The Synapse Alloy 105 Disc 5 road bike fits the bill with reliable disc brakes, a speedy-yet-comfortable design and trusty Shimano 105 components.


  • Synapse aluminum frame is built to give riders great handling, stability and steering precision in a more comfortable, upright position than race-oriented road frames
  • Rear part of the frame and the carbon-bladed fork feature the Cannondale Synapse Active Vibration Elimination (S.A.V.E.) technology for damping road vibration
  • BB30 bottom bracket enhances stiffness for efficient power transfer
  • Shimano 105 levers and derailleurs supply precise, dependable shifts throughout the 22 gears
  • Promax Render R disc brakes offer powerful braking with nuanced control for excellent performance in any condition
  • FSA Gossamer crankset and a wide-ranging 11-32 tooth cassette deliver a wide spread of gearing options for easy spinning no matter the gradient
  • Maddux RD3.0 wheels are wrapped with Schwalbe Lugano tires for low rolling resistance and grippy handling
  • Specs and images are subject to change


This bike comes with Coast to Coast Support, which includes:
  • 1 year of free adjustments (see more below)
  • In-store bike assembly
  • Pickup in store or curbside
  • Bike experts available at 170+ bike shops
REI Co-op Members get more:
  • 20% off shop services
  • Free tubes with purchase of flat tire repair (Co-op Cycles brand tubes only; tube must be installed at time of purchase)
More about our free adjustments:
New bikes go through a normal break-in period, after which they should be readjusted. All bicycles sold at REI include free adjustments for one year after purchase date—as many times as you need. Included: derailleur and brake adjustments, lateral wheel truing, hub and headset bearing adjustments, tire inflation and chain lubrication. Not included: replacement or installation of new components or accessories, any other services. Call your local REI Co-op Bike Shop for more information.

View the Cannondale Synapse Product LineView all Cannondale

Technical Specs

Item #877725
Best Use



6061 aluminum


SAVE Disc Carbon


FSA Gossamer, 50/34

Bottom Bracket



Shimano 105

Front Derailleur

Shimano 105

Rear Derailleur

Shimano 105

Rear Cogs

Shimano 105, 11-32, 11-speed

Number of Gears

22 gear(s)


Promax Render R mechanical disc

Brake Levers

Shimano 105


Maddux RD 3.0 Disc

Front Hub

Maddux RD 3.0 Disc, 28h

Rear Hub

Maddux RD 3.0 Disc, 28-hole

Wheel Size



Schwalbe Lugano, 700 x 25

Handlebar Shape

Drop Bar


Cannondale C3 compact


Cannondale C3

Seat Post

Cannondale C3


Cannondale Stage Ergo with chromoly rails


Sold separately


Synapse Si


Shimano HG600


20 lbs. 14.4 oz.

Bike Weight

Bike weight is based on median size, as sold, or the average of two median sizes.



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