The transmission is another element of large power losses due to mechanical friction.

Thanks to a test bench and the collaboration of DID chain and Csoltmester, TOOT engineers compared different chain and chainring solutions.

The D.I.D Japanese technicians have developed a chain with a pitch reduced by 65% compared to a 1/8″ track chain and very short links: the polygonal effect is reduced, transmission between chain and gears improves 19% reducing overall friction.

The work was done in partnership with Csoltmester who developed dozens of solutions for gears, tooth geometries, chainrings, pinion materials (including Ergal) and surface treatments with an exclusive lubrication.

The X23 Katheneena transmission almost doubles the number of gear teeth for the same circumference. A 60×15 becomes a 109×27 and the comparison test returns a reduction in contact friction of 4%. X23 Katheneena also creates a significantly greater flywheel effect than a 1/8” drivetrain improving overall drivetrain efficiency.

KATHENEENA’s performance is not legitimate only from tests carried out at the University of Pavia.

The drivetrain patented by Bianca Advanced Innovations was successful in a discipline where the stresses on the transmission elements are much higher than in a track race.

Giuseppe Atzeni won the Swiss Stayer National Championships with KATHENEENA. Stayer or demi-fond is a discipline in which speeds of almost 90km/k are reached for an hour of racing behind the motorbike: temperatures and mechanical stresses of the transmission test durability, resistance to effort and fatigue beyond all limits, allowing the optimization of treatments, ratios, chain tension and lubrication systems.

The former Argentinian and Panamerican champion Facundo Lezica also brought KATHENEENA into the race in the Fixed gear, coming close to winning the sprint at Zuricrit by a whisker behind Stefan Bissegger in a road race with track bikes without brakes between curves, restarts, manhole covers, road bumps and back pedaling.

KATHENEENA can be used on any track bike and crankset with 144 BCD (or different on request) with a dedicated chain, chainring and sprocket system.

The surface treatment of the chains is a Bianca Innovations exclusive and was developed exclusively for TOOT Engineering by DID chains to give the best with the TOOT chainrings and sprockets created in collaboration with CsoltMester.

The laboratory tests were carried out with advanced instruments as shown in the table above.

A track test was carried out comparing the real data in motor paced track tests. The aerodynamic difference values that may be relevant in a track test to measure non-macroscopic differences become irrelevant if the CdA value becomes irrelevant. In the test behind a stayer bike at 79Kmh with gear ratio 5.36 (development 11.65 m) with KATHENEENA® the average power value stood at 250W NP cadence 114RPM (gear 118×22). With standard drivetrain the NP value with the same metric development data exceeds 280W NP with a percentage difference of 14%

The price is for a complete kit of:

n.3 CHAINRINGS
n.3 COGS
n.3 CHAINS
TOOT BN LUBRICANT 
TOOLKIT
GEAR RATIO CALCULATOR SOFTWARE

Please contact our team to have more info about gear ratio comparison to select the correct size of the kit