Sitta Aluminium Rear Sprocket for Marchesini, OZ and BST Wheels (201H) – 37-48 Teeth, 520 Pitch

Born from a tradition of precision engineering and coveted by riders who demand both visual refinement and outright performance, the Sitta 201H aluminium rear sprocket is the definitive choice for motorcycles fitted with Marchesini, OZ or BST sprocket carriers. Eight anodised colour options, a featherlight construction and a gearing range that spans track to road make this one of the most considered rear sprocket designs on the market.

Key Features

• Lightweight aluminium construction weighing just 350 g at the 45-tooth size — reduces unsprung and rotating mass for sharper throttle response
• Eight finish options: silver, black, hard-anodised, orange, red, gold, green and blue — hard-anodised finish outlasts standard anodising under sustained load
• Twelve tooth counts from 37 to 48, all in 520 pitch, enabling precise gearing for circuits, mountain roads or fast motorway touring
• Sprocket carrier bolt pattern 76/100-5 hole — direct fitment to Marchesini, OZ and BST carriers with no modification required
• Precision-machined profile for consistent chain engagement and minimised wear on both sprocket and chain
• Part number 201H for straightforward identification and reordering

Design, Finish and Heritage

Sitta has long been a benchmark name among European racing paddocks, and the 201H embodies that heritage in a part engineered as much for the eye as for the drivetrain. The colour range goes well beyond the usual black-or-silver binary: the deep hard-anodised finish — a thicker, denser oxide layer than conventional anodising — not only looks exceptional but actively resists the abrasion and heat cycling that progressively dull lesser sprockets. Whether you choose the understated silver, a bold orange or a track-matched gold, every option is processed to the same exacting standard so the aesthetic does not come at the cost of longevity.

The machined tooth profile is clean and purposeful, reflecting the same design discipline that makes Sitta components a regular sight on Superbike-class machinery. Fitted to the lightweight forged wheels from Marchesini, OZ or BST, the 201H completes a drivetrain assembly that is genuinely worth looking at — not just performing well, but looking the part in the paddock or on the road.

Gearing and Performance

Selecting the right tooth count transforms how a motorcycle feels and performs, and the 201H gives you twelve steps across a meaningful range. A smaller rear sprocket in the 37–42 tooth band lowers the overall ratio, extending top speed and easing engine revs on long, fast sections — ideal for circuits with extended straights or open-road touring. Moving up to the 43–48 tooth range raises the ratio, sharpening acceleration out of tight corners and improving agility through technical sections. With the 201H available across the full 37-to-48 range, there is a configuration to suit every rider and every circuit.

Fitment and Compatibility

The Sitta 201H is designed specifically for motorcycles equipped with Marchesini, OZ or BST sprocket carriers using the 76/100-5 hole bolt pattern. All variants are machined for 520 pitch chain only — confirm your carrier specification and chain pitch before ordering. This sprocket is suitable for both track and sporting road use.

Specifications

• Brand: Sitta
• Part number: 201H
• Material: Aluminium
• Weight: approx. 350 g (45-tooth variant)
• Chain pitch: 520
• Available tooth counts: 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48
• Sprocket carrier fitment: 76/100-5 hole (Marchesini, OZ, BST)
• Available finishes: silver, black, hard-anodised, orange, red, gold, green, blue
• Intended use: road and track