BMW's first sportsbike in 25 years
1998 reset
Before the R1100S, BMW's last 'true sportsbike' was the R90S (1973-1976) — air-cooled boxer-twin café racer. After that, BMW built sport-tourers (R100RS, K100RS, K1100RS) but nothing with proper sportsbike geometry. The R1100S in 1998 was the first dedicated sportsbike in 25 years. Big deal at the time.
Why boxer-twin for sport?
BMW heritage
BMW's identity is the boxer-twin engine. They could have built an inline-four sportsbike in 1998 (and eventually did with S 1000 RR in 2009) but chose to build the R1100S to preserve brand DNA. The boxer-twin's low centre of gravity and shaft drive are advantages for road sport riding; disadvantages on track. Mixed reception critically; loyal owner base.
R1100S → R1200S (2006)
+85cc, +24bhp, 8 yrs later
R1200S (2006-2008): 1170cc, 122bhp, lighter chassis, sharper ergonomics. Only made for 3 years before S 1000 RR launched. R1200S is the rare/collectible version of the boxer-twin sportsbike — only ~5,000 made worldwide. Often overlooked but is the better bike.
Why it ended 2008
S 1000 RR strategy
BMW killed R1200S in 2008 specifically to make room for the S 1000 RR (launched 2009). The S is a clean-sheet inline-four sportsbike — 199bhp, 199kg wet, race-rep, takes WSBK seriously. Boxer-twin couldn't compete with that. R1100S/R1200S retired to make BMW Motorrad's sport story coherent: S = inline-four sport, R = boxer-twin everything else.
vs S 1000 RR (replacement)
Different category
R1100S: 1085cc boxer-twin, 98bhp, 229kg wet, sport-touring ergos. S 1000 RR (2026): 999cc inline-four, 205bhp, 197kg wet, race-rep ergos. Totally different bikes. Riders who loved R1100S character (boxer-twin punch, shaft drive, BMW comfort) had no successor in sport — many moved to R1250RS or R1300RS.
Real cost trajectory
+19% real (vs S1000RR)
£8,800 R1100S in 1998 (£17,600 today) → £20,990 S 1000 RR base in 2026. Modest real-terms increase. Modern bike has 100bhp more, 30kg less wet, full electronics. Used market in 2026: R1100S £3-4.5k, R1200S £4-6k for clean low-mile. R1200S is the collector buy — limited production.
Rider aids count (1998 → 2026)
1 → 12+
R1100S (1998-2002) had nothing. 2003+ R1100S added FI and optional ABS. 2026 S 1000 RR has cornering ABS Pro, traction control, slide control, anti-wheelie, 7 ride modes, launch control, M Quickshift Pro, full TFT, lap timer. Massive evolution in rider aids.
