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Extralite Hyper BB BSA MTB/Road bottom bracket 68-73 mm specific for cranks equipped with with 30 mm axle diameter (THM Clavicula, GrigioCarbonio, Rotor, Race Face etc.). The very external positioning of the bearings and the large diameter ensure superior torsional rigidity of the cranks and longer life of the bearings themselves. It is a very high-end product made in Italy, with great attention to detail and optimized weight.
The kit include two bearing cups and two sealed bearings. The cups are made of 7075T6 aluminum machined from solid material through CNC machining and equipped with a BSA type thread suitable for frames with a bottom bracket shell with both a width of 68 mm and 73 mm (87 mm total wide on a 68 mm and 92 mm total wide on bottom bracket shell on a 73 mm bottom bracket), the finish is black anodized.
The seat for inserting the tightening tool is not external but internal. To mount the Hyper BB bottom bracket cups it is necessary to remove the bearings and use specific tools for cartridge bottom brackets such as Octalink or ISIS (type Shimano TL-UN70, TL-UN74-S etc.) which are not included with the bottom bracket. Do not exceed 20 Nm of tightening torque.
The Extralite Hyper BB BSA bottom bracket uses the highest quality 6806 (30x42x7 mm) industrial bearings, available with the following options:
- ABI-Enduro Standard (the cheapest solution, great impact resistance and excellent durability especially in dry conditions)
- ABi-Enduro Stainless (stainless steel guarantees greater resistance to corrosion, making them the optimal choice in wet conditions)
- HyC Hyper Ceramic (The ceramic spheres guarantee greater smoothness, lower weight, and excellent general performance)
- XD-15 Ceramic (Added to the characteristics of HyC are greater durability, they are completely regenerable)
The weight of the Extralite Hyper BB BSA bottom bracket is only 65 grams (with HyC Hyper Ceramic or XD-15 bearings) making it one of the lightest bottom brackets on the market. This result is achieved safely, without resorting to cheap plastic cups which are lighter but also more delicate and less precise in terms of tolerances and consequent operating precision.
If the product is not available in stock (indication "IN STOCK") but can be ordered (indication "TO ORDER 7-10 DAYS"), we always recommend contacting us so that we can verify the actual availability and orderability at Extralite factory.
1 Items
Data sheet
- Kit Composition :
- 2x BSA threaded BB cups + 2 sealed bearings
- Weight :
- 66 gr. (ABI-Enduro standard) - 67 gr. (ABI-Enduro Stainless) - 65 gr. (HyC Hyper Ceramic) - 65 gr. (XD-15 Ceramic)
- Width :
- 68-73 mm
- Width :
- 87 mm (on 68 mm BB shell) - 92 mm (on 73 mm BB shell)
- Axle Diameter :
- 30 mm
- Material :
- 7075T6 aluminum BB cups
- Bearing Type :
- 6806 30x42x7 mm
- Bearing Material :
- ABI-Enduro Standard, ABI-Enduro Stainless, HyC HyperCeramic, XD-15 Ceramic
- Finish :
- Black anodized
- Use :
- MTB / Road Racing
- Fitting :
- With 30 mm axle diameter cranks and BSA 68-73 mm frames
- Max tightening torque :
- 20 Nm
- Support Standard :
- BSA 68-73 mm
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Extralite Hyper BB BSA 68-73 mm MTB/Road racing bottom bracket compatible with 30 mm axle diameter cranks. This axle diameter in combination with the external bearings increase the stiffness of the cranks and extend the service life of the bearings. BB cups are made of aluminum CNC machined with BSA threads (compatible with 68 mm or 73 mm BSA threaded frames) and then black anodized, bearings are high quality ones and are available with some options (ABI-Enduro Standard, ABI-Enduro Stainless, HyC HyperCeramic, XD-15 Ceramic). Only 65 gr. weight (with HyC Hyper Ceramic bearings). Installation (from inside BB shell) require cartridge type BB tools (Octalink, ISIS, etc.).