Sun SOS 26″ Disc Bicycle Wheel Set


At 500g, the Sun SOS is light weight for it’s width and strength.  500g for a rim that eats rock gardens for breakfast is hands down, one of the easiest decisions you’ll have to make when looking at ways to breathe new life in to your trusted steed.

QR Hub Set Options w/135mm Rear MTB HG 8/9/10/11 Spd *

Spoke Options *

Nipples Select *


The Sun SOS disc rim offers a ton of strength, especially given its rim weight, (22.8mm inner at 500g).  The rim has a welded seam, single stainless spoke hole eyelets, has an efficient arch design/profile, and is finished to an incredibly exacting standard.  Given the SOS’ rim strength, and just how precise it is finished, we’re able to build and true wheels with consistent spoke tension down to 3 to 4 thousandths of an inch.  If only every rim could be so good…

These wheels will feel solid, which hopefully will lead to confidence inspiring performance out on the trail.  Don’t let the overall wheel set weight steer you away; the rims, nipples, and spokes are all light weight given their performance capability.  The hubs are definitely on the heavier side of the spectrum.  Shimano Deore hubs do a lot of things well, (function, durability, maintenance, etc.), but they’re just not the lightest hub set out there. That’s okay though.  These hubs will hold up, and over the years you may find yourself forming a bond with them.  Hopefully in the meantime, you’ll appreciate how good of a deal this wheel set truly is.  Thanks for looking.

Build Level Breakdown

Sun SOS 26″ Clincher Specs

26″ Front Wheel Rear Wheel Wheel Weights (approx)
Rim Info  Sun SOS 26″ aluminum alloy clincher
ETRTO 559×22.8mm (26″)
Weight ≈500g average, 26″
Sidewall Disc brake only
Inner Width 22.8mm
Outer Width 27.8mm
Rim Depth 16.1mm
Rim ERD 545 (26″)
Rim Tape Tesa Tubeless Rim Tape Installed ≈ 18 – 25g/wheel (varies based on overlap)
Washers single stainless eyelets N/A
Valve Type Presta compatible
Tire Type Standard Clincher with inner tube
Tire Volumes 26″ x 1.75″ – 2.3″
Nipple Info (Brass) Sapim 12mm Brass Chrome Plated @ ≈ 1g ea 32H = 32
Nipple Info (Alloy) Sapim Alloy Double Square Polyax @ ≈ .34g ea 32H = 10
Spoke Info Leader Sapim Leader 2.0mm Stainless Spokes Black ≈ 6.5g ea 32H = 208
Spoke Info Race Sapim Race 2.0/1.8/2.0 Butted Stainless Spokes Black ≈ 5.65g ea 32H = 180
Spoke Info Dlight Sapim D-Light TCS 2.0/1.65/2.0 Butted Stainless Spokes Black ≈ 5.16g ea 32H = 165g
Spoke Count Front: 32H Rear: 32H
Spoke Pattern Front: 3 Cross Rear: 3 Cross (32H)
Lengths 29er 262/264mm (32H) 262/264 (32H)
Hub Info (option) Shimano TX-506 Shimano TX-506
Hub Weight 252g 465g 252g F, 465g R
Hub Shell Aluminum Alloy
Axle Info (option) QR 9mm x 100mm OLD QR 10mm x 135mm OLD
Hole Ct 32H 32H
DriveS PCD
61 61
DS Ctr to Flange 21.5 19.5
Non-DriveS PCD 61 61
NDS Ctr to Flange 33 32
Axle Material Steel Alloy
Bearings Loose Ball Bearings
Bearing Size 3/16″ x 10 1/4″ x 9
Freehub HG Shimano/Sram “Splined” MTB 8/9/10/11 Speed + Shimano/SRAM Road 8/9/10 speed
FH Material Steel Alloy

Wheel Weights

(without QR’s or rim tape)

Shimano TX – Leader/Brass F ≈ 989g R ≈ 1202g Set ≈ 2191g
ST170/ST300 – Race/Alloy F ≈ 860g R ≈ 990g Set ≈ 1850g

What Others Are Saying…

The Sun SOS is a stellar wheelset option, in a field that’s composed of some of the best aluminum alloy MTB rims ever.  Given their level of performance, they are an unbeatable deal, (coupon codes here).  We’re not joking around here.  If you don’t have a lot of time to research all the rim options in the marketplace, if you don’t have a lot of money, and if you can find this product page, maybe that’s Magic.

Should you buy this wheelset?  Entirely your call.  Should you watch this short but sweet rock climbing video?  Absolutely.  One More Fun One.

Make That Two.

Wheelset Facts

  • Comes with rim tape installed.
  • The Sun SOS has an 22.8mm inner width, is 16.1mm tall, 27.8mm wide, and weighs about 500g (26″)
  • Recommended for use with 26″ x 1.75″ – 2.3″ tires
  • We do Not use internal washers with these rims, the rims are eyeletted.
  • Wheelset weight will vary with end caps, freehub driver, and nipple selection.  Rim Tape adds approximately 18-25g for the wheelset, on average.

Additional information

Weight 7 lbs
Dimensions 30 × 7 × 26 in


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