The 1989 Mongoose IBOC - Signature is the champion's model. It is handmade of Titanium with a strength and performance rating unsurpassed by any other known metal. The bicycle is built to the exact frame specifications of John Tomac (the #1 mountain bike rider in the world). The head angle is 72 degrees and the seat angle is 73 degrees with responsive 16-1/4" chain stays. To add to the uniqueness of this special model, it has new Shimano Deore XT-I/ components with Hyperglide, Tioga tires stem and handlebars, Araya CMP-20 super hard rims, along with a long list of mountain components which are the finest in the world. The IBOC - Signature model is truly a champions bicycle.
Frame
Fork
Handlebar
Rims
Hubs
Pedals
Brake Set
Derailleurs
Cassette
Chainrings
Cranks
Seat
Stem
Tyres
Titanium
Titanium Unicr
Tioga CR-MO
Araya CMP-20
Deore XT QR 32H
Shim Deore XT II
Shim Deore XT II
Shim Deore XT II
Shim HG 12-28T
XT II 26/36/46
Shim Deore XT II
IBOC Leather
Tioga T-Bone
Tioga Farmer J C
Headset
Deore XT
Seatpost Size
-
Frame Size
16/18/20/22
Original Colours
WB | TT | ST | CS | HA | SA | FR | BB |
1027 | 560 | 457 | 425 | 72˚/td> | 73˚ | 40 | 35 |
Mongoose mountain bike frames are measured Center-to-Center (For example: the seat tube measurement is the center of bottom bracket spindle to center of the top tube where it intersecs the seat tube. All dimensions are in mm unless otherwise stated.