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AbsoluteBLACK Sram Oval Boost 148 Chainring

Number of teeth
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  • Trustpilot review 9.3 out of 42.772 reviews


Brand AbsoluteBLACK
Crank typeSingle
Number of gears 10-speed / 11-speed / 12-speed
Type of chainringSingle Ring
BCD Spiderless
Suitable for Boost Yes
All specifications


Absolute Black Spider Less BOOST 148 Oval are chainrings for a 1*10 and a 1*11 setup that make pedaling smoother while mountain biking. These oval blades have a turnover rate of 11%, for example, the 32 tooth version has a minimum of 30 and a max of 34 teeth. Each pedal movement has a 'dead center'. This is the moment when your cranks sit vertically. At this point there is no possibility to keep pressure on your crank/pedals what makes you want to get beyond this point as fast as possible. Oval rings have less big teeth on its dead center what makes you go faster past this point. The next thing that happens is that you feel maximum resistance, at this point you can get maximum power out of your rotation. By this theory you will pass your dead center faster what ensures less power loss before you point of maximum power. This allows an efficient pedal movement which creates less lactate and fatigue. The ovality of the chainring is 11%, making it a little getting used to time the first two days but after that you will have nothing but benefits! This chainring is provided with the most advanced narrow / wide tooth profile and guarantees an excellent life. This chainring is exclusive for SRAM GXP and BB30 (wide) cranks combined with a BOOST 148 frame. Easy to install by sliding it to the crank. Fasten it with three screws to the crank. Only hex keys needed.

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Crank type Single Single Single Single
Number of gears 10-speed / 11-speed / 12-speed 10-speed / 11-speed / 12-speed 10-speed / 11-speed / 12-speed 10-speed / 11-speed / 12-speed
Type of chainring Single Ring Single Ring Single Ring Single Ring
BCD Spiderless 104 mm / XT M8000 / XTR M9000 104 mm / 64 mm Spiderless
Number of teeth 28 / 30 / 32 / 34 30 / 32 / 34 / 36 28 / 30 / 32 / 34 / 36 / 38 30 / 32 / 34 / 36
Suitable for Boost Yes Yes No Yes / No
£50.30 £44.10 From £37.60 From £55.60
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9.3 / 10 Average from 38 reviews | Write a review
9.3 / 10

38 reviews


  • easier climbing (1)
  • faster (1)


There are currently no cons available in English yet

Most recent reviews

9 / 10

Ralph, 28 October 2016


smooths out the crank feel


  • easier climbing
  • faster

10 / 10

Warner, 14 January 2019

Super aanvulling op Eagle

Oval rijdt heel soepel en is een geweldige aanvulling op SRAM Eagle, ziet er bovendien geweldig uit!

10 / 10

Elke, 27 November 2018

Top materiaal

Mijn 32 vervangen door deze ovaal 28. Perfect voor een Enduro MTB om het klimmen aangenaam te maken. Nu is niet enkel het afdalen leuk, maar ook het klimmen.

10 / 10

Tobias, 18 November 2018

En gång oval alltid oval.

Något man gillar skarpt.


  • Skönare tramp
  • Lättare
  • Bättre kraft

10 / 10

Frédéric, 10 September 2018

très bon produit

très bonne qualité et finition, avec un meilleur rendement lors du pédalage


  • finition
  • ovalisation
  • poids

All specifications

Additional information

• Especially for single speed, 1 * 10 and 1 * 11 setups.
• Material: CNC machined 7075 Txxx Aluminum. Long-lasting construction
• Ovality of the chainring is 11%
• Suitable for 10 and 11 speed
• Compatible with SRAM XX1, X01, X0, X9, X7, S2210, S1400 and Truvativ cranks AKA. Long GXP and BB30 spindle models (with 15mm spacer on the drive side).
• The 3mm offset only for BOOST 148 frames.