Teen Student Variable‑Speed Mountain Bike

功能：高碳钢车架;38管60肩减震前叉密封中轴；卡式碟刹;小燕把;铝合金60把立;2.125车胎；双层刀圈;轴承轴皮;高档烤漆+内贴花;16-18寸带辅助轮;美卡85%装纸箱

Functions：Frame: High‑carbon steel frame

Front Fork: 38‑tube 60‑shoulder shock‑absorbing fork

Bottom Bracket: Sealed bottom bracket

Brakes: Cassette disc brakes

Handlebar: Small swallow‑shaped handlebar

Stem: 60mm aluminum alloy stem

Tires: 2.125 tires

Rims: Double‑layer knife‑edged rims

Hubs: Bearing hubs

Finish: High‑grade baking paint with inner decals

Size: 16‑18 inch, with training wheels

Packaging: US‑spec carton, 85% pre‑assembled

包装尺寸/Package Size：

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选配/Optional Accessories：18inch/20inch/22inch/24inch

装箱数pcs/ctn:1pcs