Schindelhauer Arthur IX Ultimate - Flat Bar

Arthur IX Ultimate is the flat-bar version of Schindelhauer's top urban e-bike, and its party trick is a Mahle X20 hub motor that talks directly to a Pinion Smart.Shift electronic gearbox. The bike can pick a starting gear for you at lights or hold your preferred cadence while riding, and you can still shift by hand. Everything else stays minimal: battery hidden in the down tube, one button on the top tube, a Gates belt and lights built into the bar and seat post.

Why riders pick it

• The Mahle rear hub motor weighs 1.39 kg and delivers up to 65 Nm, so the bike stays light and rides naturally above the assist limit.
• Pinion's 9-speed Ci-Line gearbox gives a 568% range, and Smart.Shift changes gear in 0.2 seconds.
• Start.Select puts you in your chosen gear when you pull away; Pre.Select keeps you at a cadence you set in the Pinion Smart.Shift app.
• The 250 Wh down-tube battery covers 50 to 80 km depending on the assist level, recharges in about 3 hours and comes out for servicing.
• The LightSKIN H1 bar has a front light three times brighter than the previous version, and five LEDs set into the seat post act as the rear light.

Specifications

• Drive system: Mahle X20 with three assist levels and app control (motor tuning, light mode, routes, ride logs, battery status, updates)
• Motor: 275 W Mahle X20 rear hub, 65 Nm, 1.39 kg, 12 mm thru-axle; assists up to 25 km/h (20 mph in USA)
• Battery: 250 Wh Mahle X20 in-tube, removable
• Range: 50 to 80 km by assist level
• Charge time: around 3 hours
• Head unit: in the top tube; Bluetooth, ANT+ and Mahle x Pinion Smart.Shift integration
• Frameset: AL6061-T6 aluminum with triple-butted aero tubes, forged BB shell and dropouts, sliding belt tensioner, Schindelhauer Belt Port, built-in motor connection and seat clamp, smooth welds, cables inside
• Fork: tapered hydroformed aluminum for post-mount discs, 15 mm axle
• Steering bearings: Acros ICR 1,5''
• Gearbox: 9-speed Pinion Ci-Line with Smart.Shift, Pre.Select and Start.Select
• Crankset and bottom bracket: Pinion
• Belt: Gates Carbon Drive CDX; 39T front, 28T rear, 115T belt
• Brakes: TRP HyWire disc with built-in electronic shifter, 160mm rotors
• Wheels: Kinlin TL23R rims on a Schindelhauer straight-pull front hub and the Mahle X20 motor, Sapim Race spokes in 3-cross and 2-cross patterns
• Tires: Continental GP Urban Classic 35-622
• Stem: aluminum Satori Stealth
• Handlebar: LightSKIN H1 flatbar with integrated front light (the spec sheet also lists an H1 drop bar)
• Bar covering: Brooks Cambium bar tape
• Rear light: LightSKIN LED seat post
• Saddle: Brooks Cambium C15
• Pedals: CNC-machined aluminum Schindelhauer Urban Pedal
• Fenders: Curana Dlite
• Security: Schindelhauer Connect integrated GPS tracking; Hexlox optional
• Options and mounts: pannier rack and kickstand optional; lock holster, bottle cage or frame lock can be fitted
• Weight: 16.2 kg
• Max system weight: 125 kg
• Color: Jade Green

Schindelhauer may change technical details, features or colors without notice as the product is refined.

Geometry and sizing

• Frame size: S 53, M 57, L 61
• A, seat tube c-t (mm): 530 / 570 / 610
• B, horizontal top tube (mm): 600 / 620 / 640
• C, head tube (mm): 165 / 180 / 200
• D, chainstay (mm): 449 on all sizes
• E, head tube angle (°): 72,5 on all sizes
• F, seat tube angle (°): 73 on all sizes
• G, wheelbase (mm): 1081 / 1101 / 1121
• H, standover (mm): 804 / 829 / 857
• I, reach: 432 / 449 / 463
• J, stack: 576 / 590 / 609
• Headset: 1 1/8 - 1,5
• Seatpost diameter (mm): 31,6