Peregrine Mk 4 frameset

• Tubing: Custom drawn triple butted cro-moly steel tubing with lugged head tube and seat cluster.
• Headtube and Headset: 34mm - 1 1/8" headtube for non-tapered traditional press-fit headset.
• Tyre Clearance: Clearance for up to 700×55 or 650×60 (29×2.1" or 27.5×2.3") tyres.
• Chainring: Double chainring 48-36 max (a double chainring and front derailleur may limit tyre clearance). For 1x - max chainring 44T on a 47mm chainline.
• Bottom Bracket: 68mm BSA threaded bottom bracket shell.
• Seat Post: 27.2mm seat post
• Steerer: Straight steerer (1 1/8") 
• Cable Routing: Internal dynamo cable routing in right fork leg
• Brakes: Flat mount 140-160mm brake fitment
• Axles: 12mm thru axles – 142mm rear spacing, 100mm front
  - Front - 122 length, M12x1.5, >13mm threaded
  - Rear - 164 length, M12x1.5, >13mm threaded
• Bottom Bracket: eccentric Bottom Bracket insert supplied – 68mm BSA threaded shell.
• Cable Guides: Bolt on modular cable guides under down tube.
• Tubing Treatment: Electrostatic Deposition (ED) anti-corrosion treatment.
• Sizing: Four frame sizes from Small to Extra Large
• Colours: British Racing Green with ivory head and seat tube panels (see custom page for info on our custom paint programme)

The Peregrine was the second frameset designed under the Singular brand – with the first prototypes landing in May 2007. I’d already been a big proponent of 29” wheels – launching the Swift in ‘06. The concept of the Peregrine was to take the function of those big wheels and put them in a classically styled, lugged construction frame – adding disc brakes and the ability to use current componentry.

That brief hasn’t changed in the 18 years which have since passed – bringing with them a whole raft of ‘gravel’ bikes – a wider audience now coming to appreciate the wonders of drop bars and fat tyres for tackling varied terrain.

Classic design - the Peregrine utilises a lugged construction of frame and fork - providing both strength and a classic look. 

Slender steel - slim tubing provides not just a classic aesthetic, but gives a supremely smooth ride. The Peregrine is no noodle though, load it up and it feels solid and stable. The maximum recommended combined rider and luggage weight of 120kg/264lbs

Big clearance - with space for up to 29×2.2" (700×55) tyres and full length mudguards. However, the Peregrine also rides nicely with skinnier 700c tyres - down to around 38mm would be a minimum recommended size.

Eccentricity is good - the Peregrine has an eccentric bottom bracket shell. The primary benefit of this is for tensioning single cog drivetrains - whether fixed gear, singlespeed or an internally geared hub. However it is also really useful for fine tuning the bottom bracket height when using different size wheels and tyres - for instance switching between 700c and 650b wheels. 

Keep 'em outside - All cables are routed external to the frame with neat modular cable guides. This makes maintenance and parts-swapping a breeze. A fundamental premise in my design is to keep bikes practical, user serviceable, and long-lived.