Honda CB1100 EX and CB1100 RS: initial information

Honda switches more in the direction of the retro motorcycle via a new sportier version of its CB1100, the RS. The classic CB1100 EX, with its spoked rims, for its part releases several improvements while the 4-cylinder air goes to Euro4.

MNC announced it : Honda is taking advantage of the transition to Euro4 standards to upgrade its and add a new RS version with more sporting claims. The two versions share the same "old-fashioned" double-cradle-type steel chassis, most of the components – including a magnificent 16.8-liter tank with no visible welds and LED headlights – and the engine, now up to standard. Euro4. This air-cooled 1140 cc in-line 4-cylinder "breathes" better and cleaner thanks to a revised intake and more efficient mufflers in addition to being lighter (-2.4 kg).

The total weight takes the opportunity to lower itself slightly, a non-negligible aspect in view of the substantial mass of this motorcycle (255 kg announced on the EX), even if these kilos are very well hidden behind an enviable balance. A new limited-slip clutch is also making its appearance to facilitate the shifting of the six gears and reduce the risk of the rear wheel dribbling during downshifting. The performance is identical to 2016 (89.7 hp and 91 Nm of torque), which is a small form of achievement as the Euro4 standards pose higher constraints that are difficult to meet with an air block. Honda engine manufacturers have achieved this, as has BMW with its flat-twin on its different forms of Nine-T (Standard, Scrambler, Pure and Racer).

Nine T objective !

The parallel with the neo-retro (active) from beyond the Rhine precisely takes on its full dimension since Honda ostensibly comes to hunt on its ground in 2017 with the CB1100 RS, a new version with a sharp cycle part! Technically identical to the EX, this CB1100RS is distinguished by its Showa fork with a larger diameter (43 mm) with golden sheaths, its separate cartridge rear assemblies, its larger discs pinched by now radial calipers and its stick rims. 17-inch tires on which more sporty tires will fit more easily. 

The ergonomics evolve in the transition towards more dynamism, in particular via a higher saddle of 5 mm (795 mm), while the dimensions of the double cradle are slightly radicalized: 26 ° of caster angle against 27 °, shank of 99 mm instead of 114 mm and wheelbase of 1485 mm against 1490 on the CB1100EX. The weight in running order drops by 3 kilos (252 kg against 255), in particular thanks to the adoption of a nice aluminum swingarm. Hopefully the engine gains character to stick to this enticing program !

CB1100 EX and RS 2017: the key points

Aspects common to both versions

• Air-cooled 1140cc dual ACT inline-4 with 89.7 hp and 91 Nm
• Injection body supplied by a shortened intake duct. New air filter. Chrome mufflers 70 mm shorter, 7% smaller in diameter and 2.4 kg lighter 
• Limited slip clutch (16% less lever effort)
• LED headlight and taillight, 16.8 liter fuel tank without visible welding and topped with an aviation-type cap
• Redesigned footplates, extended side stand
• Aluminum chain guard (plastic in 2016) 
• Brushed aluminum triple clamp 
• Manufacturing in Kumamoto (Japan) 

Aspects specific to the EX and RS

• 41mm fork and Showa combos on EX – 43mm Showa fork and separate cartridge combos on RS
• 296mm disc brakes and Nissin 4-piston front calipers – 310mm discs and Tokico radial calipers on RS
• Handlebars more relaxed on EX – More advanced on RS
• 255 kg in running order for EX (260 kg in 2016) – 252 kg on RS
• 18 inch spoke rims on EX – 17 inch spoke rims on RS
• CB1100EX in Pearl Yellow or Candy Red
• CB1100RS in Candy Red and Graphite Black

2017 CB1000 EX and CB1100 RS photo gallery

 

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