13款美国Specialized （闪电）Hotrock 24 XC 童车

关公

逐渐成长的自行车技术和质量使得大龄儿童有更多的骑行选择。

>	24“ A1 铝合金车架，它的设计完全等同于成人XC车型，具有双抽加工工艺管型设计，加固的轮组挂钩，配备碟刹预装口
>	SR Suntor 轻量化避震前叉，50mm行程，铝合金避震体，带有内置LO油压阻尼，可对回弹和预压进行调节
>	坚固轻便的32孔双层圈体轮组，精加工的刹车表面，可以保证制动力度的稳定性和轮组的耐用性
>	Specialized Fast Track Knobby山地车胎，提供儿童更自信的骑行体验
>	为青少年优化设计的牙盘组，可以更换牙盘齿片，配合Shimano 7速 14-32齿 飞轮，可以提供流畅的变速感受
>	SRAM X3 7段后变速杆，搭配Comp旋转变速手柄

Technical Specifications

车架	Specialized A1 Premium Aluminum frame, double-butted and formed DT/TT, externally relieved HT and forged dropouts w/ replaceable hanger and disc mount
后避震器
前叉	SR Suntour SF11-XCT-JR-24-MLO, 1pc alloy lower, coil/MCU spring, 1-1/8" Hi-Ten steerer, direct press type dust seal, for both V+Disc brake mount, preload adjust w/ mechanical lock out, 50mm travel
碗组	1-1/8" threadless, loose ball
把立	Alloy Ahead, 4 bolt, 15º rise, 25.4mm clamp
车把	Kid's Riser Bar, alloy, 600mm wide, 30mm rise, 25.4mm
车把	Specialized Kraton
前刹车	"V" brake, alloy linear pull, 1pc. pad
后刹车	"V" brake, alloy linear pull, 1pc. pad
刹车把	Alloy, linear pull compatible
前变速器	SR Suntour, 8-speed, 31.8mm clamp
后变速器	SRAM X3, 7-speed, long cage
变速拨杆	SRAM 3.0 Comp, 7-speed, Grip Shift
飞轮	Shimano MegaRange, 7-speed freewheel, 14-34
链条	KMC Z7, 1/2" x 3/32"
牙盘组	SR Suntour 7-speed Junior, 160mm w/ replaceable outer ring
链轮	42/32/22, steel, replaceable outer w/ chainguard
中轴	Square taper, cartridge bearing, 68mm shell
踏板	Composite platform, w/ reflectors, 9/16"
车圈	24", alloy, CNC braking surfaces, double-wall, pin joint, 32h
前花鼓	Forged alloy, double-sealed, ground race, QR, 32h
后花鼓	Forged alloy, freewheel type, double-sealed, ground race, QR, 32h
辐条	Stainless, 15g
前外胎	Specialized Fast Trak Sport, 24x1.8", wire bead, 60TPI
后外胎	Specialized Fast Trak Sport, 24x1.8", wire bead, 60TPI
内胎	Schrader valve
座垫	Body Geometry Kid's Rival, 7mm rail, front and rear bumpers
座杆	Alloy, 27.2mm, micro adjust
座管夹箍	Alloy QR, nylon washer
备注	Chainstay protector, reflectors, clear coat, owner's manual