Brand: Sirdar

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【Full Aluminum Alloy Frame】Aluminum alloy body with high carbon steel parts, such as handle bar, chain. Sturdy materials can prevent bikes from damage, also on rainy days, strong enough to withstand any harsh environment
【27 Speed Professional Mountain Bike】3 gears front derailleur and 9 gears derailleur deliver 27 speeds of ultra smooth shifting, finger-type shifter. The front and rear double disc brakes provide powerful braking and it’s not easy to accumulate dust in the brakes