The collar clamps onto the sleeve in a range of positions. The sleeve allows 14 cm of collar adjustment. The sleeve is bonded to the oar shaft, so the desired inboard range must be determined at the time of order.

We have established standard inboard setting ranges that will accommodate most boats and rowers. If these standard ranges listed below do not meet your particular needs, you can specify a custom range when you place your order.

Standard Inboard Ranges

Adjustable Length Sweeps
• 106-120 cm (with the handle in the shortest length setting)

Fixed Length Sweeps
• 110-124 cm

The primary consideration here is the interaction between inboard and spread. Spread is defined as the distance from the center of the boat to the oarlock pin. You should choose an inboard setting such that when the inboard setting is subtracted from your spread, the difference is about 30 cm. Rowers with longer reach may be comfortable with a slightly greater difference (longer inboard). Shorter rowers may be comfortable with slightly less difference.

Pitch

Options

• 0 degrees — The majority of the oars we make are set to 0 degrees pitch.
• Custom — We can build any amount of pitch into your oars if desired. We are rarely asked to put more than 4 degrees of pitch into an oar.

The total pitch of the blade to the water is the sum of the pitch set in the oar plus the pitch in the oarlock plus the pitch in the oarlock pivot pin.  Rowers generally use a total pitch of somewhere between 3 and 7 degrees. The oarlock pivot pin is also generally set at 0 degrees. The desired total pitch is then achieved by putting pitch in the oarlock. (If you do not have adjustable pitch oarlocks, you will need to set the pitch with the pivot pin.) If the rigger on your boat does not accommodate this type of adjustment we suggest you contact Concept2 for adjustable oarlocks. Note: Pitching of the pin requires careful thought, as the resultant pitch on the blade will change as the oar swings through the arc of the stroke. 

The most important criteria for setting pitch is how the oar feels to the rower on the drive. Generally, the higher the rig, the less the pitch needed to feel comfortable and the lower the rig, the greater the pitch needed. If you feel that you have to constantly pull up to keep the oar in the water, then you should reduce the overall pitch and/or lower the height of your riggers. If you feel that your oar goes deep, and water consistently buries too much of the oar shaft, then you should increase the pitch and/or raise the rigger height.