Product description
Fulcrum Rapid Red 3 DB Gravel Wheel Set 28" 12x100/12x142mm HG 8-11-speed Disc TLR black (black)
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On the road along the B-roads, on hidden and little-used asphalt roads or off-road, with a bike with curved handlebars and widetyres- Fulcrum knows all about it.
The new Rapid Red 3 DB wheelset is particularly suitable for riding on varying terrain and has been developed from scratch. It is made entirely of aluminium and features a weight-saving CNC-machined rim with a rim width of 24 mm, which is perfect for modern frames with plenty of air for tire clearance.
The renowned 2-Way Fit Ready design allows both a tubeless tire and a clincher tire to be fitted, ensuring maximum compatibility with the various tire types available on the market. The freedom to choose between 700C (from a width of 30 mm) and 29" diameters rounds off the versatile range. The right balance between wheel size and tire type makes this wheel model incredibly fast on asphalt or unstoppable on difficult gravel tracks: It belongs to the ASTM 2 category of impellers.
2:1 TWO-TO-ONE SPOKE RATIO - Disc Brake
When the rider pedals at full power, the rotation of the sprocket set causes the spokes on the freewheel to give way, resulting in a loss of tension on the rim. This causes excessive bending of the whole and this inevitably means a loss of energy.
Fulcrum has solved this classic cycling problem with its patented 2:1 Two-to-One Spoke Ratio, i.e. by doubling the number of spokes in the critical areas.
RDB Rim Dynamic Balance
The concept is simple and ingenious: balance the mass of the rim joint with an equivalent mass positioned exactly opposite it
Wide Rim Tech
The Fulcrum F E department worked according to the wishes of the racing teams to create rims with a greater width in relation to the past, from about 4 mm more than the previous ones.
This technical choice makes it possible to offer the ideal support base for 25/28 mm tires, the preferred sizes today. This guarantees stability, optimum handling and a high level of comfort.
Cup & Cone
The plain and conical bearing differs from the classic cartridge bearing in that it works in perfect alignment with the corresponding forces, weight and thrusts coming from the frame, as the balls run on a groove positioned in direct opposition to these forces.
Details
- Tyre width: from 40 to 60 mm
- Bearing type: Cone/Bearing shell system
- reflective graphics