Absolute Black Oval Direct Mount Chainring for Sram Boost PVD Rainbow 2020

119,95 €
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The Original one and only Premium absoluteBLACK Sram compatible Direct mount BOOST 1X Oval narrow wide chainrings in PVD Rainbow (oil slick) colour. Designed for GXP, DUB and Long BB30 cranks. This special PVD Rainbow Titanium coating process makes the chainrings very durable and incredibly beautiful. It is the most Premium oval chainring on the market with scientifically proven performance gains. NOTE: Due to the nature of PVD process, every chainring is unique and color may vary. Not a single chainring is the same which makes your new ring completely individual. It can be more gold-purple or more blue/green-purple

Why oval matters ? Traction, Traction and Traction. With oval rings, rear tire traction improves greatly on loose and slippery terrain. Your legs will be less tired and your speed improved. Climbing will become easier then ever before. It is world's best oval chainring.
These premium 1X Sram Direct mount BOOST148 compatible Oval chainrings are designed for GXP® and Long BB30 spindle cranks. Chainring is dedicated for Boost148 bikes ONLY. Converts a regular Sram crank into a Boost specific setup.


  • Material : CNC machined 7075 Txxx Aluminum. Long-lasting
  • Finish : PVD Rainbow (oil slick)
  • Teeth : 28T, 30T, 32T, 34T
      - 26T oval chainring has an ovality of 24/28T and is best for someone who uses currently 24 or 26T round ring
      - 28T oval chainring has an ovality of 26/30T and is best for someone who uses currently 26 or 28T round ring
      - 30T oval chainring has an ovality of 28/32T and is best for someone who uses currently 29 or 30T round ring
      - 32T oval chainring has an ovality of 30/34T and is best for someone who uses currently 31 or 32T round ring
      - 34T oval chainring has an ovality of 32/36T and is best for someone who uses currently 33 or 34T round ring
  • Shape : Oval
  • Mount : Direct Mount
  • Offset : 3 mm
  • Chainline : 52 mm
  • Crankset compatibility : Sram Boost DUBGXP and BB30 LONG SPINDLE XX1, X01, X0, X9, X7, NX Eagle, SX Eagle, S2210, S1400 and Truvativ AKA, Cane Creek eeWings
  • Chain options : 10, 11, 12 spd chain for geared bike or 6-8 spd for SS. If used in 1x9 drivetrain - 10spd chain must be used to obtain the performance. (yes - 10spd chain will work great on 9spd cassette)
  • Chainguide needed : No. (but for very aggressive enduro riding it is recommended to use an upper chain guide or at minimum bashguard.)
  • Oval chainring does not affect the work of rear dérailleur cage at all (video here). Such a ring can be used therefore in 1x9/10/11/12 combination as well as Singlespeed and fixie bikes
  • Chain Length : Bypassing the rear derailleur, run the chain around front chainring/largest cog combination. (For the full suspension frame, position the rear suspension for the greatest chain length required. It's usually a normal position where rear shock if fully extended) Add 2 to 4 segments of the chain to this length for proper chain length.
  • Designed in UK. Manufactured in Poland (EU)
  • Colour : Rainbow (Oil Slick)


  • 26 teeth : 48 gr
  • 28 teeth : 50 gr
  • 30 teeth : 55 gr
  • 32 teeth : 59 gr
  • 34 teeth : 66 gr

If you wish to check for frame clearance with new oval ring, below you can find measurement of biggest dimension of the oval (tip to tip of tooth): 26T : 118 mm , 28T : 127 mm , 30T: 134 mm ; 32T: 143mm ;  34T: 151mm

Technical details

Part number13774
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  • 1

Questions des internautes

26 mars 2021

bonjour c'est pour savoir si le plateau absolute black 28 d se monte bien sur un scott spark qui a un plateau de 32 d

Réponse de Purebike 26 Mars 2021


Ce plateau est compatible avec les pédaliers Sram dotés d'une fixation de plateau type direct mount et avec les vélos qui sont au format boost (axe de roue arrière 12x148 mm)


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