Extralite

Extralite UltraBottom 55

Name: Extralite UltraBottom 55
Brand: Extralite
SKU: 298
Price: 48.36 EUR
Availability: InStock
Rating: 5 (1 reviews)

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.

Quantity

IN STOCK

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Extralite UltraBottom 55 are a member of UltraTopBottom headsets big family, developed by Extralite to fit almost every different headset standard on the market.

extralite ultrabottom 55

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 :

extralite ultrabottom 51-52

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 51-52

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.

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

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.

extralite ultrabottom 55

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)

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 :

extralite ultrabottom 51-52

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

extralite

Product Details

Reference

In stock 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

Download

Extralite UltraBottom 55

Extralite UltraBottom 55 User Manual

Download (80.93KB)

Compara

Prodotto	Extralite UltraBottom 55	Extralite UltraBottom 51-52	Extralite UltraBottom 56	Extralite UltraBottom 44T
Availability	Disponibile	Questo prodotto non è più disponibile	Questo prodotto non è più disponibile	Disponibile
Prezzo	59,00 €	59,00 €	59,00 €	59,00 €
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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Extralite UltraBottom 55

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.

Product Details

Data sheet

Download

Compara

Prodotto

Availability

Prezzo

Descrizione

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.

Peso :

Tipologia :

Diametro Interno Tubo Sterzo Telaio :

Tolleranza :

Standard Forcella :

SHIS :

ingombro Verticale Fuori Telaio :

Tipologia cuscinetto :

Materiale Cuscinetto :

Finitura :

Utilizzo :

Compatibilità :

Limiti di utilizzo :

Limite peso Biker :

In the same category

Extralite UltraBottom 51-52 integrated lower half headset for 1.1/8"-1.1/2" tapered forks. With high quality angular contact bidirectional stainless bearing. Only 25.3 gr weight. Compatibie with 51/52 mm lower head tube bore frames. Made in Italy.

Extralite UltraBottom 56 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 32.3 gr weight. Compatibie with 56 mm lower head tube bore frames. Made in Italy.

Extralite UltraTop 41-42 HD integrated upper headset for 1.1/8"-1.1/2" standard or tapered forks. With high quality angular contact bidirectional stainless steel heavy duty bearing. Only 22.0 gr weight. Compatibie with 41 mm up to 42 mm inner diameter upper head tube bore frames. Made in Italy.

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