1985 Diamond Back Apex
The Diamond Back Apex was Centurion's high end
mountain bike manufactured in 1985.
The Apex is a huge revamp of the Diamond Back
line of mountain bikes. No longer is Diamond Back
using the full Suntour component group. Only two
components are Suntour and the rest is now Shimano.
The two remain Suntour components are the Suntour
XC-II bear claw pedals and the Suntour XC Power
Cunningham Design rear bottom mounted roller cam
brakes.
The Shimano group used was the top of the line
Shimano M700 series. This series is also known as
the Shimano Deer Head series because of the deer
head insignia used on the derailleur's.
The Suzue high flanged hubs are sealed cartridge
bears and are of very high quality. They are to the
quality of Phil Wood hubs but without the nostalgia
or brand recognition.
The most interesting design aspect of this bike
is the chain stay is comprised of three spokes as
shown below in picture #4.
   
(What makes this bike unique.)
| |
|
Specifications
|
|
Manufacture: |
Diamond Back |
|
Model: |
Apex |
|
Production
Year |
1985 |
|
Made in: |
Japan |
|
Original MSRP: |
$499 |
|
Material Type: |
Cr-Mo |
|
Tubing: |
Double butted |
|
Welding Type: |
TIG |
|
Color: |
Metallic Teal |
|
Decal Type: |
Sticker |
|
Size of Frame: |
20-inch |
|
Frame Weight: |
|
|
Fork Weight: |
|
|
Assembled
Weight: |
28 pounds |
|
Dropouts: |
Vertical |
|
Bottle Mounts: |
2 qty |
|
Touring
Mounts: |
Yes |
|
Serial Number: |
N6G0790 |
|
Component
|
OEM
|
Description
|
|
Brake Levers: |
Yes |
Dia-Compe 282
4-finger |
|
Front Brakes: |
Yes |
Shimano
BR-MC70 cantilever |
|
Rear Brakes: |
Yes |
Suntour XC
Power Cunningham Design |
|
Front
Derailleur: |
Yes |
Shimano
Deerhead FD-M700 |
|
Rear
Derailleur: |
Yes |
Shimano
Deerhead RD-M700 |
|
Shifters: |
Yes |
Shimano
SL-M700 friction |
|
Cranks: |
Yes |
Shimano
FC-B124,
175mm, triple, 110/94, BCD 5-hole,
tapered |
|
Chainrings: |
Yes |
Shimano
BioPace, 48/38/28, 110/94, BCD
5-hole |
|
Bottom
Bracket: |
Yes |
Sealed ball bearing, English |
|
Pedals: |
Yes |
Suntour XC-II
Bear Claw, 9/16-inch thread |
|
Rims: |
Yes |
Araya RM-20
Polished silver,
26x1.5, 26-inch, 36-hole |
|
Hub-Front: |
Yes |
Suzue,
36-hole, high flange, sealed
cartridge bearing, bolt-on |
|
Hub-Rear: |
Yes |
Suzue,
36-hole, high flange, sealed
cartridge bearing, bolt-on |
|
Cassette: |
Yes |
Suntour
Winner, 5-speed, freewheel |
|
Chain Guard: |
Yes |
Suntour,
polished tin |
|
Spokes |
Yes |
Stainless
steel |
|
Headset: |
Yes |
Tange Falcon
FL-250, 1-inch |
|
Forks: |
Yes |
1-inch, Tange |
|
Handle Bars: |
Yes |
Aluminum |
|
Neck: |
Yes |
2-piece |
|
Seat: |
|
|
|
Seat Post: |
Yes |
Laprade SR,
26.8mm |
|
Seat Post
Bolt: |
Yes |
Suntour Bolt
QR |
|
|
