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AbsoluteBLACK Sram Oval Boost 148 Chainring

AbsoluteBLACK Sram Oval Boost 148 Chainring
62 reviews
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59.20
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Pros & Cons

Pros & Cons

  • Oval chainrings increase pedal efficiency by up to 9%!
  • The special #D construction makes this chainring light and stiff.
  • You'll need to get used to cycling with oval chainrings.
Read more on what our customers have to say about this product

Specifications

Specifications

Brand
AbsoluteBLACK
Fits cranks
Sram
Number of gears
12 speed / 11 speed / 10 speed
BCD
Sram Direct-Mount
Crank Type
Single
Chainring Type
Single Ring
Suitable for Boost
Boost (B148)
Offset
3 mm

Description

Description

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.

Technology

• 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, 11 and 12 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.
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Reviews

Reviews

4.8 / 5
Average from 62 reviews
5
54 reviews
4
7 reviews
3
0 reviews
2
1 review
1
0 reviews

Photos from customers


Most relevant reviews

5 / 5

Been after one for a while, makes pedal stroke smoother

- Christopher 19 December 2020

Great product. After a friend was telling me how much difference it made I got myself one. Super happy with what I got at a great price

Pros & Cons

Easier climbing
Pedal strokes smoother
Pricey, cheaper alternatives available

5 / 5

Brilliant

- Lewis 16 October 2019

Changed to an oval and safe to say I’m converted

5 / 5

amazing

- Ralph 28 October 2016

smooths out the crank feel

Pros & Cons

easier climbing
faster

4 / 5

Minder wielspin bij zand klimmetjes, maar trappen is wennen

- Joost 16 March 2021

Ovaal blad gekozen vanwege reviews dat het zorgt dat je minder wielspin kan hebben op losse zanderige klimmetjes. Dit omdat het vermogen naar het achterwiel constanter is. DIt klopt in mijn ervaring. ik kom nu net de klimmetjes op waar ik voorheen de tractie verloor (met dezelfde banden en druk) Het is wel even wennen daar je trapgevoel anders wordt en je dat deels compenseert door andere zithouding (zadel iets naar voren in mijn geval). Het is geen wondermiddel, maar net bij die steile klimmetjes is helpt het wel. Op rechte stuk heb je er geen last van, maar ook niet echt baat. Zeker niet wanneer je van nature al een mooie ronde trapbeweging hebt. En wanneer je dat hebt, dan kan het zelfs voorkomen dat je de ketting niet gespannen houdt wanneer het kleine ovale gedeelte gepakt wordt. Dat compenseer je weer door of iets zwaarder verzet te rijden of hogere frequentie. Dus zoals gezegd, echt even wennen. Wanneer klimmen jouw ding is, zeg ik doen.

Pros & Cons

beter voor knie
Minder wielspin bij zand klimmetjes
Ziet er mooi uit
Even wennen met trappen
Zitpositie moet iets anders

5 / 5

Sehr schnelle Lieferung unkompliziert und fair.

- Meikel 29 January 2021


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Fits cranks Sram Sram Shimano Sram
Number of gears 12 speed / 11 speed / 10 speed 12 speed 12 speed 12 speed / 11 speed / 10 speed
BCD Sram Direct-Mount Sram Direct-Mount Shimano Direct-Mount Sram Direct-Mount
Crank Type Single Single Single Single
Chainring Type Single Ring Single Ring Single Ring Single Ring
Number of teeth 28 / 30 / 32 / 34 / 36 30 / 32 / 34 / 36 / 38 28 / 30 / 32 / 34 / 36 30 / 32 / 34 / 36
59.20 66.90 57.50 From 53.30
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