The 1997 Threshold Sport has a Mongoose new bulge-butted oversize Cr-Mo main frame with sport geometry. Shimano 21-speed Altus group with new Grip Shift MRX-170 dual indexed shifters. Comfortable sport seating position with dual density gel foam saddle and flat sport handlebar. Front, rear and seat pin quick releases.
Frame
Fork
Handlebar
Rims
Hubs
Pedals
Brake Set
Derailleurs
Cassette
Chainrings
Cranks
Seat
Stem
Tyres
CR-MO M Frame
Mongoose HI-TEN
Mongoose Flat
Weinmann 4019
MGS/Altus 36H
Mongoose Resin
Shimano Alloy
Shimano Altus
S HG 11-28T
Altus 38/32/24
Shimano Altus
Mongoose
MNGS Comfort
Mongoose BW
Headset
Mongoose
Seatpost Size
-
Frame Size
14/16/18/20/22/24
Original Colours
| Size | ST | TT | WB | FR | CS | HT | BB | HA | SA | SO |
| 14" | 355 | 515 | 1042 | 45 | 445 | 85 | 38 | 69.5˚ | 72.5˚ | 27" |
| 16" | 406 | 535 | 1055 | 45 | 445 | 85 | 38 | 69.5˚ | 72.5˚ | 28.5" |
| 18 | 457 | 560 | 1063 | 45 | 445 | 95 | 35 | 70˚ | 72˚ | 30" |
| 20 | 508 | 570 | 1071 | 45 | 445 | 135 | 35 | 70˚ | 72˚ | 31" |
| 22 | 559 | 580 | 1076 | 45 | 445 | 180 | 35 | 70.5˚ | 72˚ | 33" |
| 24 | 610 | 590 | 1087 | 45 | 445 | 230 | 35 | 70.5˚ | 72˚ | 34.7" |
Mongoose frames are measured "Center-To-Center" (For example: the seat tube measurement is taken from the center of the bottom bracket spindle to the center of the top tube where it intersects the seat tube). The Amplifier and C(a)2 frames are measured "center-to-true-horizontal" (where the top tube would intersect the seat tube if the top tube were parallel to the ground). All dimensions are in millimetres unless otherwise stated.
