BGM clutch sprockets are bulletproof. Designed for the enormous power and torque of today`s engines, they are made to the highest manufacturing standards from a high alloy steel (SCM415 / 15 CrMo 5). The enormously high strength of the base material (up to 1100N/mm2, HRC 58-62) provides a reassuringly safe basis for the production of BGM pinions.

The manufacturing process meets Honda`s high standard for gear manufacturing. Every single part receives an inspection certificate. BGM therefore has a continuous quality assurance.

Please note that for engines with a power above approx. 25HP/25Nm we recommend a straight-toothed primary drive. The straight toothed drives offer maximum safety. With the same possible reduction ratio (by using a different pinion pairing) they have a much more stable tooth base in direct comparison to the helical geared drives. Instead of a helical-toothed 24/65 reduction, we recommend, for example, the straight-toothed 23/63 BGM primary. The reduction ratio is almost identical in both cases, but the 23/63 is the perfect choice for sporty engines because it is virtually indestructible. For those who find the 23/63 ratio too short, a 62-tooth primary gear can be selected, which can be further extended with the individually available clutch pinions (with 24 or 25 teeth).

The helical 24 teeth special pinion is perfect for plugged setups such as Polini 210 or Malossi Sport. With this, the available speed band can be stretched again and a higher top speed can be achieved. However, we expressly do not recommend it for heavily revised engines whose power is above 25PS/25Nm. The constructive conditions of the pinion pairing 24/65 do not allow this

• High quality material 15 CrMo 5
• Precise manufacturing according to Honda standard
• Continuous quality control
• Can be used on COSA2 clutch types
• Available with 22,23Z and 24Z
• Fits original primary of all 200cc engines
• Fits engines with retrofitted original 65 tooth or BGM 64 / 65 tooth primary sprocket

Characteristic feature of the BGM pinion is its black coloring as well as the practical inscription with indication of the number of teeth which the pinion has and for which primary wheel it is suitable.

Particularly interesting is the pinion with 24 teeth. It fits all engines that are factory equipped with a 23/65 pinion/wheel combination. These are all 200cc engines of the PX200, Rally 200. An exception are Cosa 200 models with 21/68. Here the pinions offered here do not fit.
With 24 teeth, it has a longer reduction ratio and offers a gear ratio change for more top speed by simply replacing the pinion. Conversely, with the 22 tooth pinion, the reduction can be shortened, ideal for the city or speed-oriented concepts.

BGM clutch sprockets are the perfect complement to the indestructible BGM Superstrong clutch.
All BGM Superstrong clutches with 22, 23 and 24 teeth are factory equipped with this pinion. It can be combined with all Cosa2 clutch types (recognizable by at least 8 spring seats).

(US)

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