Shimano Altus top-swing, bottom-pull/bottom bracket mount
Rear derailleur
Shimano Altus
Crankset
Shimano Altus, 24/32/38 teeth
Bottom bracket
Shimano BB-CT91, 110 mm spindle
BB shell width
68mm English
Rear cogs
7-speed, 11 - 28 teeth
Chain
Taya TB-500, 1/2 x 3/32"
Pedals
Fasten steel
Brakes
Brakes
Shimano Altus brakes, Shimano Altus levers
Cockpit & contact points
Headset
1" Tien Hsin
Handlebar
Wei Hau
Handlebar extensions
Ross
Stem
Wei Hau
Saddle
Selle Master
Seatpost
Ross, 26.0 mm diameter
Wheels & tires
Rims
Rigida AS-26, 36-hole
Spokes
Ta Sen steel, 2.0mm straight gauge
Spoke nipples
Brass nipples
Front tire
26 x 1.90" Hutchinson
Wheel size
26" wheels
Geometry · Legacy reference
Top tube
558.8 mm
Head-tube angle
71.5°
Seat-tube angle
71°
Chainstay / rear center
419.1 mm
Wheelbase
1054.1 mm
Manufacturer-published archive data. Confirm exact standards and dimensions before ordering parts or performing service. Generated by Velopedia on October 21, 2026.