CRW Rides are open to members and limited guests. Guests may only attend two rides during the calendar year.
All riders (both Members and Guests) must REGISTER

Guests register here:

Members register here:

If a rider has not pre-registered, that rider must do so online at the start of the ride. 

The online registration will include a liability waiver that all riders will need to review and accept. 

The online registration will also require all riders to review CRW’s Safety and COVID Guidelines and to agree to follow those guidelines on the ride.


Sure you've done a metric century before, but how about on a Friday at 5 AM?

Join CRW's Roosters for a fast metric century that focuses less on climbing and more on speed. Plenty of opportunity for pace lining and socializing. Starting from Mighty Squirrel Brewery in Waltham, we'll head to Groton via Lincoln, Acton and Littleton then back to TMS through Westford, Carlisle and Concord. This scenic and relatively flat metric includes a quick regroup/bathroom/snack at Dunkin' Donuts (mile 30) and a longer breakfast stop at Haute Coffee in Concord (mile 56). Pace is 17 mph +. Riders are welcome to skip the Concord breakfast stop to save time. We anticipate the slowest pace group (17 mph) to arrive back to the Mighty Squirrel by 10am, including generous stop time.

Date: Friday Sep 24, 2021
5:00 AM
Ride Leader(s): 
Ride type: 
Led Ride

Click HERE for descriptions of the ride types.


Routes and Cue Sheets from RWGPS

Miles Elevation Print Download
69 2,589 ft Cue sheet GPX

Ride Start


registered riders