Extralite
Extralite UltraTop 41-42 HD
€81.15
Extralite
Extralite UltraBottom 55
Reference:
€48.36
Extralite UltraBottom 55 semi-integrated press fit type lower half headset for 1.1/8"-1.1/2" tapered forks. With high quality angular contact bidirectional stainless steel bearing. Only 31.6 gr weight. Compatibie with 55 mm lower head tube bore frames. Made in Italy.
Extralite UltraBottom 55 are a member of UltraTopBottom headsets big family, developed by Extralite to fit almost every different headset standard on the market.
All these different standards makes confusion and isn't so easy to know which standard is correct for yur bike, so the best way to go is to measure frame headtube bore with the help of a precision caliper :
With the correct measure and the help of the follow chart, you should be able to choose the correct headset for your bike. You can also find an high-resolution version of this chart inside product pictures.
Extralite UltraBottom 55 is a semi integrated press fit type headset, the lower part that will fit frames with integrated tapered (1.1/8"-1.1/2") headset. Lower headtube bore must have 55 mm inner diameter.Â
Headset Equipment :
- An high quality angular contact bidirectional stainless steel bearing with double seals
- A superlight Al 7075T6 CNC lower cone, easy to install and remove without tools
- A superlight Al 7075T6 CNC bearing cup, press fit type
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The weight in only 31.6 gr. so a great value for a product that it's also better in quality than stock cheap headsets.
Stainless steel avoid corrosion, and the high quality bearing will assure a precise and smooth action and also a longer life.
Extralite Headsets has a minor stack height than standard ones especially for the upper part of the headset. This is an advantage because :
- You can get a lower handlebar riding height with the same steering/control parts, and this is important especially with 29" bicycles.
- You can use a fork that has a short cutted headtube.
- You can use a fork with a longer travel without modify handlebar riding height (of course steering angle will change a little)
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We remember you that's also possible to use standard 1.1/8" forks on frames with tapered headset, with the help of the special Extralite Extrabolt 16 adapter :
With this adapter headset bearing will work directly on and headset tapered lower cone will not be installed.
Extralite UltraBottom 55 is an high quality product Made in Italy
Product Details
1 Item
Data sheet
- Weight :
- 31.6 gr.
- Headset Style :
- Press Fit Internal Cup
- Head Tube Bore :
- 55 mm
- Tolerance :
- 54.90 - 55.00 mm
- Fork Standard :
- Tapered 1.1/8" - 1.1/2"
- SHIS :
- ZS55/40
- Stack Height :
- 2 mm
- Bearing Type :
- Bidirectional cartridge
- Bearing Material :
- Stainless Steel
- Finish :
- Black anodized
- Use :
- MTB, Road
- Fitting :
- Scott Scale, Spark, etc.
- Range of use :
- Unlimited
- Max rider weight :
- Unlimited
Compara
Prodotto |
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Availability |
Disponibile
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Questo prodotto non è più disponibile
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Questo prodotto non è più disponibile
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Disponibile
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Prezzo |
48,36 €
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48,36 €
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48,36 €
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48,36 €
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Descrizione |
Extralite UltraBottom 55, parte inferiore serie sterzo semi integrata press fit per forcelle coniche 1.1/8"-1.1/2". Con cuscinetto inox di alta qualità a contatto angolare bidirezionale, Peso di soli 31.6 gr. Compatibile con tubo sterzo con diametro interno (parte inferiore) di 55 mm. Made in Italy. |
Extralite UltraBottom 51-52, parte inferiore serie sterzo integrata per forcelle coniche 1.1/8"-1.1/2". Con cuscinetto inox di alta qualità a contatto angolare bidirezionale, Peso di soli 25.3 gr. Compatibile con tubo sterzo con diametro interno (parte inferiore) di 51/52 mm. Made in Italy. |
Extralite UltraBottom 56, parte inferiore serie sterzo semi integrata press fit per forcelle coniche 1.1/8"-1.1/2". Con cuscinetto inox di alta qualità a contatto angolare bidirezionale, Peso di soli 32.3 gr. Compatibile con tubo sterzo con diametro interno (parte inferiore) di 56 mm. Made in Italy. |
Extralite UltraBottom 44T, parte inferiore serie sterzo semi integrata press fit a calotta esterna, consente di montare forcelle coniche 1.1/8"-1.1/2" su telai pensati per canotti tradizionali da 1.1/8" purchè con tubo sterzo con diametro interno (parte inferiore) di 44 mm. Con cuscinetto inox di alta qualità a contatto angolare bidirezionale, Peso di soli 38.3 gr. Made in Italy. |
Peso : |
31.6 gr. | 25.3 gr. | 32.3 gr. | 38.3 gr. |
Tipologia : |
Semi-Integrata con alloggiamento interno | Integrata Inferiore | Semi-Integrata con alloggiamento interno | Semi-Integrata con alloggiamento esterno |
Diametro Interno Tubo Sterzo Telaio : |
55 mm | 51 - 52 mm | 56 mm | 44 mm |
Tolleranza : |
54.90 - 55.00 mm | 51.00 - 52.50 mm | 55.90 - 56.00 mm | 43.95 - 44.00 mm |
Standard Forcella : |
Conica 1.1/8" - 1.1/2" | Conica 1.1/8" - 1.1/2" | Conica 1.1/8" - 1.1/2" | Conica 1.1/8" - 1.1/2" |
SHIS : |
ZS55/40 | IS51/40 o IS52/40 | ZS56/40 | EC44/40 |
ingombro Verticale Fuori Telaio : |
2 mm | 1 mm | 2 mm | 10 mm |
Tipologia cuscinetto : |
A Contatto Angolare Bidirezionale | A Contatto Angolare Bidirezionale | A Contatto Angolare Bidirezionale | A Contatto Angolare Bidirezionale |
Materiale Cuscinetto : |
Acciaio Inox | Acciaio Inox | Acciaio Inox | Acciaio Inox |
Finitura : |
Nero anodizzato | |||
Utilizzo : |
MTB, strada | MTB, strada | ||
Compatibilità : |
Scott Scale, Spark, etc. | Specialized Stumjumper HT Carbon, Epic Carbon, etc. | ||
Limiti di utilizzo : |
Nessuno | Nessuno | Nessuno | Nessuno |
Limite peso Biker : |
Nessuno | Nessuno | Nessuno | Nessuno |
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