Are you looking for a shimano a.derailleur xt m8100 12-sp sgs singelyou will find more information about this item below. Do you have any questions? Please contact customer service Decathlon.the all-new shimano deore xt m8100 derailleur series makes the drive extra quiet thanks to decreased tension at low speeds and an additional bumper on the balance plates. Larger 13t derailleur wheels increase efficiency and chain management, while compatibility with the new shimano cassettes with 12 gears increases range. communicate quickly and accurately to start optimally on every trail faster, shock-free shifting hyperglide + drive 12-speed wide-range gearing with the largest crown gear 10-51t peaceful in all gears lower tension in rear derailleur and low-speed chain new embossed edge added to rear derailleur balance plates gassed attack larger 13t drive derailleur wheel stable on rough terrain 'low profile' design shimano shadow rd + properties : model: rd-m8100-sgs series: deore xt m8100 series color: group color average weight: 284 grams with bumper on pulley housing lightweight hollow construction chain compatible: hg + 12-speed direct confirmation (conventional): yes pivot traps with fluorecoating: 7 largest dental crown_max. Li> max. Difference / for: 0t lower caster wheel upper caster wheel: low closed caster wheel sonken type wheel bolt derailleur: yes caster wheel detage: 13t lower caster wheel: closed lower pulley-cage: sgs (sgs (sgs (sgs (sgs (sgs (sgs (sgs (sgs (sgs (sgs (sgs (sgs (sgs (long cage) gears behind: 12 normal spring type: shadow rd + smallest tooth crown max: 10t smallest tooth crown min.10t capacity: 41t