Chromoly main triangle/hi-tensile steel rear stays
Fork
Polygon SF115
Fork material
Aluminum, triple-clamp crown
Rear shock
N/A
Drivetrain
Component group
Shimano Altus
Shifters
Shimano Altus EZ Fire
Front derailleur
Shimano Altus top-swing, top-pull/bottom bracket mount
Rear derailleur
Shimano Altus
Crankset
Shimano Altus, 24/34/38 teeth
Bottom bracket
Shimano BB-CT91, 116 mm spindle
BB shell width
68mm English
Rear cogs
7-speed, 11 - 28 teeth
Chain
KMC UG-50, 1/2 x 3/32"
Pedals
Resin
Brakes
Brakes
Shimano Altus brakes, Shimano Altus levers
Cockpit & contact points
Headset
1" YST 665
Handlebar
Hsin Lung steel
Handlebar extensions
Steel
Stem
Hsin Lung chromoly
Saddle
Velo VL-252
Seatpost
Steel, 25.4 mm diameter
Wheels & tires
Hubs
Front: Joy Tech Big Hub Q/R, Rear: Joy Tech aluminum cassette, Q/R
Rims
Rigida LASER, 36-hole
Spokes
Sha Dar stainless steel, 2.0mm straight gauge
Spoke nipples
Brass nipples
Front tire
26 x 1.95" Super East 126-05
Wheel size
26" wheels
Geometry · Legacy reference
Top tube
460 mm
Head-tube angle
70°
Seat-tube angle
72°
Chainstay / rear center
430 mm
Wheelbase
1025 mm
Fork offset / rake
45 mm
Manufacturer-published archive data. Confirm exact standards and dimensions before ordering parts or performing service. Generated by Velopedia on September 29, 2026.