Excessive-quality {custom} bikes don’t come low-cost. Inevitably there are cases the place prospects depart builders with an unpaid invoice and an incomplete motorbike. This closely modified ’93 Ducati Monster 900 is a major instance. It’s the work of Spanish builder XTR Pepo and because of an unpaid invoice the 95% full undertaking has come to an unsavory stand nonetheless .
Pepo initially named this undertaking Quantum when it kicked off in 2021, however as a result of problems with its Dutch proprietor, he now refers to it as DNF which stands for Do Not End. It’s a tragic flip of occasions that has left the bike lacking just a few ultimate parts to finish it, however nonetheless, it’s a surprising construct price taking a more in-depth have a look at.
When Pepo was approached by the proprietor of the Monster 900, he was requested to construct a light-weight bike appropriate for tackling the famed Nürburgring circuit in Germany. However not solely did it must carry out nicely, it additionally needed to be the envy of his fellow riders. To fulfill his buyer’s necessities Pepo laid out plans to create such a motorcycle.
“The inspiration was a Supertwin racer for endurance use,” he explains. “The design was influenced by the RAD 02 race bike I constructed throughout my Radical Ducati years.”
Kicking off with the engine the Monster 900’s Desmodronic L-twin has had an intensive going over. Inside its freshly sand-blasted circumstances, you’ll discover ported heads, hi-comp pistons, a lightened flywheel, and an anti-hooping clutch. All the meeting has additionally been handled to new bearings and gaskets and has been blueprinted to make sure most efficiency with out risking reliability. Spark comes through a Silent Hetkit ignition system whereas air and gasoline are managed by Ok&N pod filters and Keihin FCR 41mm carbs.
To maintain all the things working inside secure temperatures Pepo’s added a big RC Racing Oil radiator on the entrance of the engine. And according to this builds weight-saving strategy, the battery is a light-weight LIPO unit. Rounding out the brand new engine setup is a hanging 2-into-1 Wolfman exhaust sporting a Spark megaphone muffler.
In typical XTR Pepo model, he hasn’t pulled any punches with the styling. The brand new bodywork is made nearly totally from carbon fiber. The carbonated record consists of the Endurance-styled entrance fairing, 749 R-type impressed gasoline tank, seat pan and rear cowl, battery field, and each the entrance and rear mudguards. Holding all the things in place are equally light-weight custom-made aluminium brackets and the tail unit sits on a redesigned subframe.
For an genuine observe bike look, the gasoline tank options an Endurance fast filler cap machined from high-grade alloy and there’s a FRP pan overlaying the Monster’s stomach. Quantum’s seat was upholstered in-house, however the job of laying the outlandish livery was handed to Pepo’s go-to paintshop, Artenruta Portray.
Though this bike was constructed to be avenue authorized, the proprietor’s want to sometimes race it meant this Monster needed to have premium dealing with. Pepo has achieved that by retrofitting it with suspension lifted from a Ducati 1098. An S&P yoke and triple clamp maintain the brand new forks in place and their efficiency has been matched by becoming a premium YSS shock within the rear.
To maintain unsprung weight to a naked minimal this Monster rolls on OZ Piega cast alloy wheels wrapped in Continental rubber. The (nearly full) brake bundle makes use of Discacciati floating 330mm rotors within the entrance and a Brembo unit on the again with a Brembo rear caliper and pump. The brake and clutch fluid strains are Kevlar objects from Frentubo and there’s a Dural CNC machined rear sprocket awaiting a sequence on the rear wheel.
Different premium parts picked out for this undertaking embrace an Aviacomposti sprint, Koso LED flip indicators, a Louis LED brake gentle, S&P clip-on bars, S&P rear set pegs, and a Domino throttle and grips. With all of the adjustments made this Monster has shed an astounding 40kg of weight, and with 80hp on the rear wheel, it’s positive to be a beast on the observe… ought to it ever get completed.
Sadly, with the tip of this construct in clear sight, Pepo has put it on maintain. With an unpaid invoice for work already accomplished it’s left him out of pocket and extinguished his want to finish it. The expertise has additionally compelled him to make the troublesome determination to now not tackle tasks for patrons. As an alternative, XTR shall be providing pre-built bikes of Pepo’s personal design, which relaxation assured are positive to be each bit as lovely as this one. Hopefully sooner or later Quantum will discover its technique to the Nürburgring when the suitable purchaser comes alongside.
Images by Jose Martin
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