knockout:-bolt’s-custom-r100rt-boxer
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Knockout: Bolt’s custom R100RT boxer




A contemporary accumulate from Spain’s Fling Motor Co. is generally a treat. The Valencia-based mostly fully workshop has a historic past of excessive-cease racecar preparation, and so they decide to eke out most performance from their two-wheeled builds as effectively.

Store proprietor Adrián Campos has a particular affinity for BMW airheads, and his most trendy advent is based mostly fully on a 1981 R100RT. That became as soon as the touring version of the RS, and in its day, the costliest production bike you must prefer within the States.




Fling luxuriate in treated this forty-twelve months-outmoded model with respect. The air-cooled 980cc boxer twin has been fully rebuilt and heavily modified, with a twin-spark conversion allowing elevated compression pistons and a stronger vitality output.

Breathing is now thru Mikuni carbs rather then 40mm Bings, with gases exiting thru straight 2-into-1 pipes ending in a Spark muffler. A Siebenrock Deep Sump Conversion Equipment ensures a abundant supply of oil for cooling.




You correct know this engine will jog as sweet as a nut—because Adrián’s faded jog engineer Juan Fernandez constructed it. (Juan has additionally worked for the Mahindra System E championship personnel, so he handled the total electrics on the BMW too.)

The relaxation of the mods are a runt extra weird and wonderful. “On the mechanical aspect, we installed a hydraulic grab,” Adrián says. “It’s one thing uncommon to search for on these fashions. It’s a equipment, nonetheless we needed to create changes to the gearbox to adapt it.”




That sounds anxious sufficient, nonetheless the worst became as soon as but to arrive abet: Fling installed the die-solid single-sided swingarm from a R1200S. It meant grafting on portion of a R1200S chassis with the Paralever attachments, reshaping the swingarm itself slightly and repositioning the gap for the axle.

Then Adrián’s crew made adaptors to join the swingarm to the R100 gearbox, and slotted in a jog-spec shock made by Hagon.




“The rear frame is designed to gape admire the seat and the tail are inserting within the air, without a transversal attend,” Adrián says. “The tail became as soon as designed and printed in 3D, then made in carbon fiber with extra layers beneath to handle the warmth coming from the exhaust.” The unobtrusive seat unit comes from Tapizados Llop Ferrer, a high-class upholsterer based mostly fully in Valencia.

The entrance cease will get an even bigger make stronger: the entrance wheel and Öhlins forks from a Ducati Panigale 1299. They’re fitted the narrate of a modified version of Fling’s triple tree conversion for BMW K- and R-series fashions. Braking is handled by 330mm discs with contemporary Brembo M4 monobloc calipers, and the abet wheel is from a BMW R1200




In spite of every little thing this mechanical trickery, the bodywork became as soon as the more straightforward portion. Fling sold in a generic fiberglass fairing thinking it would match—“nonetheless we ended up modifying it fully, so I don’t know if it became as soon as worth it!” Adrián shrugs.

The tank is de facto inventory, nonetheless has been raised slightly at the abet to accumulate a bigger line.




Electrics are generally an afterthought on customs, nonetheless not on this case: Fling’s Juan Fernandez worked with the Barcelona-based mostly fully engineering and R&D specialist Engiser 101 to ranking a complete contemporary loom.

It’s tousled to a Motogadget Mini speedo, a retro-vogue rev counter, and switchgear from RebelMoto. Foot controls are from the Italian legends Tarozzi.




We reckon Fling’s R100RT is the supreme technique to kick off 2021: a classic recipe, with a further hit of engineering, vitality and vogue. Here’s to a sufficient twelve months of customs ahead.

Fling Motor Co. | Facebook | Instagram | Photos by Alvaro Gaba

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