Welcome to Mg Biker!

MTB Mg Frames "Team" & "Elite"

Common information:

> Bottom bracket length - 73mm
> Bottom bracket thread - BSA
> Bottom bracket spindle length - 112 mm
> Head tube inside diameter - 34mm (1 1/4") { for 1 1/8" forks }
> Suspension Fork length - 430mm
> Fork offset - 40mm
> Chain stays length - 425mm
> Wheels - 26"
> Chain stays clearance - 70mm
> Distance between rear dropouts - 135mm
> Front derailleur clamp inside diameter - 34.9mm
> Seat post clamp inside diameter - 34.9 mm
> Aluminum alloy replaceable rear derailleur hanger
> Titanium rear brake posts
> Seat post shim inside / outside diameter - 27.2mm / 31.0mm

FRAMES GEOMETRY

Frame size	Seat tube, mm (c-top)	Top tube, mm (c-c)	Wheel base, mm	Head tube angle, degree	Seat tube angle, degree	Bottom bracket drop, mm	Head tube, mm
15"	381	540	1035	71.0	73.0	38	120.0
17"	432	565	1063	71.0	73.0	38	120.0
19"	483	590	1082	71.0	72.5	32	120.0
21"	533	615	1100	71.0	72.5	32	155.0

Frame size = distance from bottom bracket center to seat tube top.

TUBES PROFILES/SIZES (in mm)

Frame size	Down tube (oval)	Seat tube	Top tube (oval/round)	Head tube	Bottom bracket	Chain stays (oval & con.)	Seat stays (oval & con.)
15"	62x38	34.8x1.9	51x32	42x33.9	42	32x16-17x16	27x16-17x16
17"	62x38	34.8x1.9	51x32	42x33.9	42	32x16-17x16	27x16-17x16
19"	75x38	34.8x1.9	62x38	42x33.9	42	32x16-17x16	27x16-17x16
21"	75x38	34.8x1.9	62x38	42x33.9	42	32x16-17x16	27x16-17x16

Down tubes are butted. Down tubes on "elite" models are wider at the bottom for a better forces distribution.

THE AVERAGE WEIGHT OF THE FRAMES

Frame size	Weight, g	Weight, lb.
15" Team	1210	2.67
17" Team	1270	2.80
19" Team	1370	3.02
21" Team	1450	3.19
15" Elite	1190	2.62
17" Elite	1220	2.69