Archive for the ‘Bikes’ Category

The 2011 Norco Range – Versatility Vernacular

For 2011 there are some big changes to the Norco lineup. One of the most exciting bikes for next year is the 2011 Norco Range. With 160mm of travel, a tapered headtube, Syntace rear axle and derailleur hanger system, post mount brakes and the new Advanced Ride Technology (A.R.T.) suspension design, the Range is a ride anywhere, all mountain machine. A.R.T. is a new suspension design which  has been integrated into the 2011 Range as well as 3 additional models of Norco full suspension bikes. A.R.T. is an optimization of the patented FSR Suspension System.  The FSR patent describes a four-bar bicycle suspension system with the rear wheel mounted to the seatstay.  The rear pivot is located on the chainstay, both in front of and below the rear axle.  The all-new A.R.T. suspension design is classified as FSR, but moves this rear pivot further forward and lower compared to previous models.  This optimized positioning delivers a ride which is more efficient while pedaling and more reactive to hits while descending.  Increased levels of chain growth results in higher anti-squat characteristics which reduces suspension bob, making the bike pedal more efficiently.  Additionally a more rearward axle path allows the rear wheel move back at the same time as it moves up to get out of the way of large, square-edge bumps more effectively, resulting in smoother and faster descents over rough terrain.

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The real story about the Norco Range is in the ride. We can describe how it feels but without getting on and giving it a try, you will never really appreciate the versatility and adaptability of the bike. Recently, while the Range was still hidden under a blanket of secrecy, Norco’s Engineering Manager P.J. Hunton took on the challenge of racing DH, and XC on the same bike. The venue was the Sunshine Coaster and the bike was the Range.

Day 1 of P.J.’s racing was the XC, a 3-lap course totaling 24kms of steep climbs, fast descents and a whole lot of fun. Taking off in a hurry, PJ started out close to the front and spent the next two hours picking off the competition one by one. Taking on a field of XC racers on 23lb race bikes P.J. was riding his range at 28lbs and 160mm of travel. Steady climbing and fast descents brought P.J. a 4th place finish in the field.

The second day of racing entailed dropping the saddle and ripping the DH. This second part of the challenge also added a side-pot with a small group pitching in a 20 each. As a pedaling course, the Sunshine Coaster was a great track to test out the Range. Still, on one of the smallest bikes racing, P.J. would have is work cut out to keep up in the rough, all while dealing with the fatigue of yesterday’s XC. Out of the gate the strategy was to keep pedaling, brake late and stay on the bike. The top section was fast through a clear cut then moving into some tight corners before the forest. Once into the trees the flat pedaling section played to P.J.’s favour before a steeper rougher bit moving onto the finish. With a time of 3:08, six seconds off the lead left P.J. just off the podium in 4th place. The important part though was that the Range won the side-pot taking home the cash.

Both races came down to the wire and P.J. was up at the front in both disciplines. Riding the same bike for XC and DH takes guts, it takes lungs and it takes a true rider. As Norco’s Engineering Manager and an avid cyclist, P.J. has seen the design of the Range from start to finish and touched every detail along the way. Racing the Sunshine Coaster was a challenge put out to him, but it was also a personal test of what his brainchild is capable of. The idea of a bike to do-it-all has been a dream since the start of mountain biking and through A.R.T. suspension, sophisticated design and thoughtful spec the Range really is the bike for any trail.

Explaining Advanced Ride Technology – A.R.T.

A.R.T. Overview:

Norco’s Advanced Ride Technology (ART) is an optimization of the proven FSR suspension system which delivers a more efficient pedaling and improved square edge bump compliant ride than ever before.  This has been achieved by changing the location of the pivot points to achieve more chain growth and a more rearward axle path.  The increased chain growth results in higher anti-squat characteristics which reduces suspension bob, making the bike pedal efficiently.  The rearward axle path lets the rear wheel move back at the same time as it moves up to get out of the way of large, square edge bumps more effectively, allowing the bike to roll smoother and faster over rough terrain.

1. Improved Square Edge Bump Compliance
This refers to the suspension absorbing tall bumps where there is rearwards force put on the wheel in addition to vertical force.  Figure 3. illustrates the forces involved in a square edge bump.  If the wheelpath is rearward, the wheel can move backwards and upwards at the same time to get out of the way of the bump more quickly and efficiently.  This allows the bike to roll much smoother and faster over bumpy terrain.

Square Edge  Bump  Compliance

2.       Increased pedaling efficiency
When a bicycle accelerates forward, inertia pulls the rider’s weight towards the back which results in compression of the rear suspension.  This is known as squat. ART suspension is designed so that when the suspension compresses, the chainstay length increases. This is known as chain growth.  When the rider puts force on the pedals, the chain becomes very tight and the bicycle will accelerate forward.  The chain tension will also force the suspension to extend.  This extension force is known as the anti-squat force because it counteracts the squat caused by the acceleration. With 30% more chain growth than before, ART suspension is designed to resist squat forces and reduce pedal bob, resulting in a highly efficient pedaling platform.

Chain Growth Chart

3.      Improved Leverage Ratio Curve
A.R..T suspension uses a lower and more progressive leverage ratio to increase the bottom out resistance and improve the tuneability of the suspension. Lowering the leverage ratio reduces the amount of force on the shock which gives the shock greater control of the suspension movement.  The adjustment dials on the shock will also have a greater effect on suspension performance, allowing the rider to fine tune the suspension to their liking. A more progressive leverage ratio makes the suspension get stiffer as it gets farther into its travel, giving the suspension that ‘bottomless’ feel.

Leverage Ratio Chart

The A to Z (well… actually 2 to Y) of 2011 Norco Bikes

With the Launch of the 2011 Norco Bike Lineup, you are probably scouring the internet trying to find a photo of what could be your next bike. Well, here are photos of the lineup for you to enjoy. The photos are listed alphabetically from the 250 down to the Yorkville. Have a look through and tell us what you like best!

The Down-Low on the 2011 Norco Range

You may have heared rumours about the 2011 Range or even seen some photos floating around about the all new bike and the A.R.T (Advanced Ride Technology) suspension system. Well, here is Norco Engineering Manager working with Pinkbike.com to get you all the info about the awesome new bike.

What do you think about the Range and the A.R.T Suspension?

Read more at pinkbike.com

Norco Product Launch – Day 3

Day three of the Norco Product Launch is the day where media, distributors and dealers are present. The whole shebang of people are all here to see the new line of bikes. Following 8 different planned rides, several meetings,  and some intimate time with the bikes, today ended with a BBQ at Inter-River Park in North Vancouver. A great day of riding deserves good beer and good company- this is what the BBQ is about. Now I will admit that after three days of riding, talking, wrenching, driving, photoing, and blogging…. I am getting a little bit tired so I am going to let some photos tell the rest of the story.

Dustan