Mason ISO 2025

Brand: Mason
Model: ISO
Year: 2025
Category: Drop Bar MTB
Similar bikes: Salsa Cutthroat 2025, Bearclaw Honey Badger 2025, Wilde Dream Engine Ti 2025, Chiru Kegeti 2025, Panorama Taiga EXP 2 2025

Mason ISO 2025

Geometry & Specs

Frame Size 42 46 50 54 58
Estimated Rider Height 155cm - 164cm 164cm - 172cm 172cm - 180cm 180cm - 187cm 187cm - 194cm
Specified Rider Height 151cm - 162cm 162cm - 172cm 172cm - 182cm 182cm - 189cm 189cm - 198cm
Class Drop Bar MTB Drop Bar MTB Drop Bar MTB Drop Bar MTB Drop Bar MTB
Style relaxed relaxed relaxed relaxed relaxed
Material steel steel steel steel steel
Fork rigid rigid rigid rigid rigid
Handlebar drop bar drop bar drop bar drop bar drop bar
Suspension Correction 100 mm 100 mm 100 mm 100 mm 100 mm
Top Tube Effective Length 542.7 554.1 560.5 567.6 587.0
Effective Top Tube Length (Est) 540.3677 551.8764 558.2718 565.5385 585.0749
Reach 366.6 375.7 379.4 384.0 397.4
Stack 606.0 614.4 623.8 633.1 654.5
Standover 760 785 810 845 885
Head Tube Angle 69 69 69 69 70
Seat Tube Angle 74 74 74 74 74
Chainstay Length 445 445 445 445 445
Front Center 624 636 644 652 662
Bottom Bracket Drop 76 75 75 75 73
Trail 90 90 90 90 83
Trail 45 83 83 83 83 76
UDH YES YES YES YES YES
Tire Width Max 700c 63 63 63 63 63
Tire Width Max 650b 2.9 2.9 2.9 2.9 2.9
Axle Spacing 148 (boost) 148 (boost) 148 (boost) 148 (boost) 148 (boost)
Stealth Dropper YES YES YES YES YES
Seatpost Diameter 31.6 31.6 31.6 31.6 31.6
Max Chainring 1x 36 36 36 36 36
Dropout fixed fixed fixed fixed fixed
Internal Storage
Frame Weight 2100 2180 2260 2400 2480
Base Build USD $3932 $3932 $3932 $3932 $3932
Frameset USD $2353 $2353 $2353 $2353 $2353
Location Lancing, West Sussex, United Kingdom Lancing, West Sussex, United Kingdom Lancing, West Sussex, United Kingdom Lancing, West Sussex, United Kingdom Lancing, West Sussex, United Kingdom