Chiru Alpin - Alpine Gravel
Chiru Alpin - Alpine Gravel
Chiru Alpin - Alpine Gravel
Chiru Alpin - Alpine Gravel
Chiru Alpin - Alpine Gravel
Chiru Alpin - Alpine Gravel

Chiru Alpin - Alpine Gravel

Regular price$5,200.00
Shipping calculated at checkout.

  • In stock, ready to ship
  • Backordered, shipping soon

Frame Features & Specifications

Designed as the Mountain-bikers gravel bike. Choose the Chiru Alpin when the going gets steep, big mountains, big descents. The Alpin can tackle fast dirt roads as well as technical terrain thanks to the massive tyre clearance that lets you run between 43c and 55c tyres.

The modern frame geometry fits 4 bottles, bosses for bolt-on top tube bag, Full Frame Bag or Racks and fenders.

The frame geometry is designed around a 430mm rigid fork, or Fox 32AX suspension fork

The Alpin is taking bikepacking gravel to the next level !

3-4 week delivery depending on availability.

  • Brushed Finish Titanium 3Al/2.5V, grade 9
  • Max Tyre Size: 700c x 55c (43c – 55c)
  • Rear Thru axle: 142mm x 12mm
  • T47 x 85.5mm Bottom Bracket
  • 430mm fork or 40mm suspension fork
  • Seat post dia: 27.2mm, Seat clamp: 31.9mm
  • Eyelets for 4 bottle holders, rear rack, bolt on top-tube bag & frame bag
  • Semi-integrated headset: ZS56/44
  • Internal or External cable routing under chainstay
  • Internal D/T cable routing for seat-dropper, rear derailleur and brake
  • Gravel drivetrain: Mech 1x & 2x, Di2, AXS Wide 1x 2x (45c max)
  • Max front chainring: 48/31T or 44T; GRX crank, SRAM Wide

Frame Geometry


Alpin S M L
TT : Effective Top Tube (mm) 545 575 600
CT : Seat Tube Length (mm) 420 450 475
RC : Chainstay Length (mm) 428 430 435
WB : Wheelbase (mm) 1086 1118 1145
BB : BB drop (mm) 74 70 68
HT : Head Tube Length (mm) 135 150 180
SA : Seat Tube Angle (deg) 74.5 74.5 74.1
HA : Head Tube Angle (deg) 67.7 68 68.3
Reach (mm) 401 431 444
Stack (mm) 576 587 615

Geometry calculated with 427mm A-C fork, 50mm offset

Frame Options

Available as a Frame Only or Frameset Kit incl. Titanium fork

Frame Only:

  • Titanium Frame 3Al/2.5V, grade 9 & cold-formed tubing
  • CEC Headset: ZS56/44
  • Alloy seat-clamp included or upgrade to titanium
  • Weight (M) : 1.72kg

Optional: Frameset Titanium Fork: CEC #430T

Tapered steerer, Flat Mount 160mm, 12 x 100mm axle, 680gm, A-C: 430mm, 50mm offset

Front brake and Dynamo cable internal routing, fender mount & 3 eyelets each leg for cage mounts


Prices for Forks only valid when purchased with Frame. All pricing is in $NZD and includes Shipping and GST. Prices valid through 2024. 

Free shipping on orders over $50

$10 flat rate on orders below $50

In person bicycle collection can be arrnaged in the Nelson Tasman region

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Combo deal

20% off any Formula fork & shock combo

20% off any Formula fork or shock when purchased together

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