Option	Availability	Price
Moondust Grey / Small (iD: 27467)	Please call	£869.00
Moondust Grey / Medium (iD: 27468)	In stock	£869.00
Moondust Grey / Large (iD: 27469)	Please call	£869.00
Moondust Grey / X Large (iD: 27470)	Please call	£869.00
Kermit Green / Small (iD: 27471)	Please call	£869.00
Kermit Green / Medium (iD: 27472)	In stock	£869.00
Kermit Green / Large (iD: 27473)	In stock	£869.00
Kermit Green / X Large (iD: 27474)	Please call	£869.00

The Niner SIR 9 Frame.

- Niner's most versatile steel hardtail for dirt connoisseurs
- Run singlespeed or geared
- Custom drawn, 29er specific Reynolds 853 tubeset
- Angled toptube to maximize standover clearance
- s-bend chainstays
- Niner's proven hardtail 29er geometry
- Optimized for 80 to 100mm suspension forks
- Disc brake only
- Niner BioCentric EBB system for easy singlespeed set up
- Breezer style forged vertical dropouts with 2 derailleur hanger options (singlespeed or geared)

The S.I.R. 9 is the most versatile bike in the Niner stable, fusing the “steel is real” feel of Reynolds tubing with the ability to run the frame as either a geared bike or single speed. The S.I.R. 9 uses the same custom drawn Reynolds 853 tubing as the M.C.R. 9 and combines it with Niner’s ultra-light eccentric bottom bracket. Custom “breezer” style forged dropouts have a replaceable alloy derailleur hanger and come with an insert piece for running the bike as a single speed to eliminate the unnecessary derailleur hanger for a clean look.

Niner’s own EBB, at 100 grams, is the lightest eccentric bottom bracket on the market. In addition to being light, it’s extremely functional. The EBB has more swing than any other EBB, over a full link, so you will never have to hunt down a half link to get correct chain tension and vertical dropouts mean you’ll never have to futz with the disc brake to remove the wheel.

The S.I.R. 9 is truly a do-everything frame. Run it single speed at your local race, then convert it to a full gear set to do the Trans-Alp. Want a 1 x 9? No problem. Or, if you’re just not sure, the S.I.R. 9 will give you the option of trying it all.

Please see the pricing above or contact us for full bike builds.

Any questions on the Niner SIR 9 Frame please contact us.

Finance is available on this product! Click here for more info
Finance Amount	£869.00
10% Deposit	£86.90
12 Monthly Payments of	£65.17
Charge for Credit	£-0.06
Total paid	£868.94
	APR 0%

Shipping for all Mainland UK orders is free including bikes and frames. Overseas delivery is worked out differently for each order based on the weight and size. For more info please put something into your basket to see an estimated delivery charge or get in touch.

All in stock items ordered before 2pm will be priority despatched for next day delivery*

We use Royal Mail's 1st Class Recorded delivery service for most orders, so you'll need to be in to sign for your goods. For larger items, we use FedEx Parcel Distribution Service, again you'll need to sign for them.

We will deliver goods to an address other than the credit card address, although we may require further details from you.

*excludes some bikes and bulky items

Please click here to see our returns policy

The 29 inch wheeled mountain bike isn’t just a token in the Niner line-up. It is their one and only love, the Niner heart and soul out there on the trail. Niner have 100% commitment to a wheel size they believe in, to impeccable designs & exquisite ride quality. It’s a dedication Niner want to share with you on every ride.