Rare model with differential cage, where the two sides of the cage move separately from each other, for better shifting. Shimano XTR M952 9-speed 28.6MM front derailleur. Shimano xtr m952 28.6mm newithnos mtb front derailleur vintage-bp/ts- 8/9-spd new, clean, tight, straight, no rust, strong spring and near-mint cosmetic and perfect mechanical condition.