01525 243655

B2B LOGIN

OFFICIAL UK DISTRIBUTOR topbarbikes

STAFFED BY CYCLISTS topbarbikes

FREE DELIVERY topbarbikes

FOUNDED IN 1919

01525 243655 B2B LOGIN

MY ACCOUNT BASKET

EMPTY

Brands
Bikes & Frames

Bikes

E-Bikes

Frames
Components

Bar Tape & Grips

Bottom Brackets

Brakes & Rotors

Brakepad Selector

Brake Pads

Cables & Casings

Cassettes

Chains

Chainrings & Bolts

Chainsets & Cranks

Derailleurs

EPS Electronic

Forks

Handlebars

Headsets & Expanders

Hubs

Inner Tubes

Pedals

Pedal Cleats

Rims

Saddles

Seatposts & Clamps

Shifters

Skewers

Stems

Spokes

Sprockets & Lockrings

Tyres

Wheels

Groupsets
Accessories

Bags & Luggage

Bike Carriers

Bike Stands

Bottles & Cages

Cleaning & Lubrication

Custom Bottles

Gifts

Kickstands

Lights

Locks & Security

Measurement Systems

Mirrors & Safety

Mudguards

Pannier Racks

Phone Holders

Protection

Pumps

Rim & Valve Accessories

Rim Tape & Tub Glue

Shop Accessories

Toe Clips & Straps

Tyre Repair/Sealant

Work Stands

Trainers & Accessories
Nutrition

Bars

Gels & Jellies

Powders

Protein Shaker Bottles

Tablets & Supplements
Apparel

Clothing Mens

Clothing Womens

Clothing Casual

Clothing Kids

Clothing Accessories

Helmets

Footwear

British Cycling Official Kit

Cycling Sunglasses
Bike Trailers

Kid Trailers & Strollers

Cargo Trailers

Pet Trailers & Strollers

Tag Alongs

Trailer Accessories
Tools & Spares

Tools

Spares
Custom

Custom Bottles

Custom Clothing

My Cipollini Custom
Retailers
OUTLET

FREE UK Mainland Delivery or FREE Click & Collect, plus 30 day returns

Home
Locks & Security
Zefal K-Traz U13 S U-Lock

Zefal K-Traz U13 S U-Lock

£33.99 RRP

FIND A RETAILER

FREE UK mainland delivery

FAST dispatch, within 1 working day

Option to Click and Collect from your local retailer

DESCRIPTION DELIVERY & RETURNS REVIEWS

DELIVERY & RETURNS REVIEWS

The K-Traz U13 S is a U-lock with a loop made from very high resistance steel. Compact and lightweight, this lock is easy to carry. Fitting to the bike is quick and easy using the mount frame (included) that can be used on any tube from 20 to 80 mm in diameter. Provided with 3 keys and the possibility to duplicate keys in case of loss.

Features

Z safe: Powerful double locking system. High resistance against impacts and twists.
High resistance: Tensile and torsion strength. Antitheft and anti drilling.
Compact: can fit in a pocket
Loss of key service: Duplication of keys can be made in case of loss using the unique serial number

Specifications

Level of security: 13 - For areas with a moderate risk of theft
Material: Hardened steel
Mounting: Adjustable on downtube - Dia from 20 to 80mm
Dimensions: 90 x 140 / 3.5 x 5.5"
Dia: 13mm / 0.5
Keys: 3 included with replacements that can be made

webID: 10747

Videos

Delivery & Returns

Dispatch Times

All orders placed on our website are dispatched within 1 working day

FREE UK Mainland Delivery

Optional Click & Collect from our Network of Retailers in the UK & Ireland

This is a FREE service!
At checkout you can choose your nearest local retailer to collect your order from
When you choose to click and collect, you are supporting your local bike shop, as the retailer will receive the full profit on your order.
Click and Collect orders should be available for collection from the retailer within 1-2 working days
Please wait to hear from the retailer that your order is ready for collection before travelling
Not sure where your nearest retailer is? find them here

Returns

Item(s) must be returned unused and in its original condition and packaging within 28-days from the date of purchase. Please read our full returns policy here.

Reviews

AVERAGE USER REVIEW

No reviews yet Write a Review

Rating Distribution

5 Stars
4 Stars
3 Stars
2 Stars
1 Star

Size Guide

Jerseys

CHEST

Measure the circumference of the chest at the fullest part keeping the arms down.

WAISTLINE

Measure the circumference at the narrowest point of the bust.

HIP BONE

Measure the circumference of the hips at the widest point.

TABLE OF SIZES AND MEASUREMENTS

Measurements expressed in centimeters

Sizes	Height	Chest	Waistline	Hip bone
XS	Height 150/159	Chest 88	Waistline 76	Hip bone 92
S	Height 160/169	Chest 92	Waistline 80	Hip bone 96
M	Height 170/179	Chest 96	Waistline 84	Hip bone 100
L	Height 180/185	Chest 100	Waistline 88	Hip bone 104
XL	Height 186/190	Chest 104	Waistline 92	Hip bone 108
2XL	Height 191/195	Chest 108	Waistline 96	Hip bone 112
3XL	Height -	Chest 112	Waistline 100	Hip bone 116

CONVERSION OF INTERNATIONAL SIZES AND MEASUREMENTS

Sizes	it	eu	uk	us
XS	it 44	eu 40	uk 12	us 8
S	it 46	eu 42	uk 14	us 10
M	it 48	eu 44	uk 16	us 12
L	it 50	eu 46	uk 18	us 14
XL	it 52	eu 48	uk 20	us 16
2XL	it 54	eu 50	uk 22	us 18
3XL	it 56	eu 52	uk 24	us 20

*Please note that some of our garments have a snug fit, so we recommend that you order at least one size larger if your body measurements are at the limit or between two sizes.
Each model has been designed to fit differently and take advantage of the intrinsic characteristics of the materials used. The size may also vary based on personal preferences.

Shorts

WAISTLINE

Measure the circumference at the narrowest point of the bust.

HIP BONE

Measure the circumference of the hips at the widest point.

LEG LENGTH

Measure the length of the leg from the crotch to the ankle.

SHORTS

Measure the length of the leg starting from the crotch.

TABLE OF SIZES AND MEASUREMENTS

Measurements expressed in centimeters

Size	Height	Waistline	Inside leg	Leg lenght
XS	Height 150/159	Waistline 76	Inside leg 24-26	Leg lenght 70
S	Height 160/169	Waistline 80	Inside leg 24-26	Leg lenght 72
M	Height 170/179	Waistline 84	Inside leg 26-28	Leg lenght 74
L	Height 180/185	Waistline 88	Inside leg 26-28	Leg lenght 76
XL	Height 186/190	Waistline 93	Inside leg 28-30	Leg lenght 78
2XL	Height 191/195	Waistline 98	Inside leg 28-30	Leg lenght 80
3XL	AlHeight -	Waistline 103	Inside leg 28-30	Leg lenght 82

CONVERSIONS OF INTERNATIONAL SIZES AND MEASUREMENTS

Size	it	eu	uk	us
XS	it 44	eu 40	uk 12	us 8
S	it 46	eu 42	uk 14	us 10
M	it 48	eu 44	uk 16	us 12
L	it 50	eu 46	uk 18	us 14
XL	it 52	eu 48	uk 20	us 16
2XL	it 54	eu 50	uk 22	us 18
3XL	it 56	eu 52	uk 24	us 20

*Please note that some of our garments have a snug fit, so we recommend ordering at least one size larger if your body measurements are at the limit or between two sizes.
Each model has been designed to fit differently and take advantage of the intrinsic characteristics of the materials used. The size may also vary according to personal preferences.

GUIDELINES FOR PURCHASING THE CORRECT SHORTS

These easy steps will help you find the right shorts for you that will become your faithful training and competition partner:

Put on the trousers and put the suspenders and the bottom of the leg in place so that there are no creases, the feeling once the shorts are worn must be of slight adherence.
Keep the shorts on for a few minutes by bending your legs, and getting into bike position, then try to pinch the fabric in the thigh area and if once the fabric is released the Lycra returns to its position then you have tried the suitable size to you.
If, on the other hand, you feel an unpleasant sensation of rubbing or constriction, or if the seams or the straps are too tight, try the higher size.
Alé pads do not require the use of creams because they are soft and comfortable and are designed to be worn next to the skin without any intermediate layer.

Many times the problems encountered during the use of the garments are not attributable to the shorts themselves but to the wrong choice of size or model or to errors in washing the garments (see above), in fact:

These easy steps will help you find the right shorts for you that will become your faithful training and competition partner:

The suspenders, the elastics, the bottom of the leg tend to roll up when wearing the garment but can easily return to their place with a few small gestures.
Lycra must provide a massage to the muscles and a slight compression effect, and only if it remains very close to the body can it perform its function properly.

Accessories

GLOVES

Measure the circumference of the hand just below the knuckles. The gloves have a snug fit, it takes a little effort to put them on, but this guarantees maximum grip on the handlebars.

Sizes	Sizes Convertion
XS	Sizes Convertion 18 cm
S	Sizes Convertion 19-20 cm
M	Sizes Convertion 21-22 cm
L	Sizes Convertion 23-24 cm
XL	Sizes Convertion 25-26 cm
XXL	Sizes Convertion 27 cm

SOCKS

Size	Sizes Convertion
S	Sizes Convertion 36 / 39
M	Sizes Convertion 40 / 43
L	Sizes Convertion 44 / 47

SHOECOVERS

Model	XS	S	M	L	XL
Neopren	XS -	S 37 / 39	M 40 / 42	L 43 / 45	XL 46 / 48
Rain	XS 34 / 36	S 37 / 38	M 39 / 41	L 42 / 44	XL 45 / 47
Aero	XS 34 / 36	S 37 / 38	M 39 / 41	L 42 / 44	XL 45 / 47
Crono	XS 34 / 36	S 37 / 38	M 39 / 41	L 42 / 44	XL 45 / 47
Winter	XS -	S -	M 38 / 40	L 41 / 43	XL 44 / 47
Nordik	XS -	S -	M 38 / 40	L 41 / 43	XL 44 / 47
Klimatik	XS -	S -	M 38 / 40	L 41 / 43	XL 44 / 47
Shield (Toe cap)	XS -	S 37 / 39	M 40 / 42	L 43 / 45	XL -

Jerseys

CHEST

Measure the circumference of the chest at the fullest part keeping the arms down.

WAISTLINE

Measure the circumference at the narrowest point of the bust.

HIP BONE

Measure the circumference of your hips at the widest point.

TABLE OF SIZES AND MEASUREMENTS

Size	Height	Chest	Waistline	Hip bone
XS	Height 160	Chest 80	Waistline 63/66	Hip bone 89/92
S	Height 161/170	Chest 84	Waistline 67/70	Hip bone 93/96
M	Height 171/175	Chest 88	Waistline 71/74	Hip bone 97/100
L	Height 176/180	Chest 92	Waistline 75/80	Hip bone 101/104
XL	Height -	Chest 96	Waistline 79/82	Hip bone 105/108
2XL	Height -	Chest 100	Waistline 83/86	Hip bone 109/112

CONVERSIONS OF INTERNATIONAL SIZES AND MEASUREMENTS

Size	it	eu	uk	us
XS	it 40	eu 36	uk 6-8	us 4
S	it 42	eu 38	uk 8-10	us 6
M	it 44	eu 40	uk 10-12	us 8
L	it 46	eu 42	uk 12-14	us 10
XL	it 48	eu 44	uk 14-16	us 12
2XL	it 50	eu 46	uk 16	us 14

Shorts

WAISTLINE

Measure the circumference at the narrowest point of the bust.

HIP BONE

Measure the circumference of the hips at the widest point..

LEG LENGTH

Measure the length of the leg from the crotch to the ankle.

SHORTS

Measure the length of the leg starting from the crotch.

TABLE OF SIZES AND MEASUREMENTS

Size	Height	Waistline	Inside leg	Leg length
XS	Height 160	Waisteline 63/66	Inside leg 21-23	Leg lenght 66
S	Height 161/170	Waistline 67/70	Inside leg 21-23	Leg lenght 68
M	Height 171/175	Waistline 71/74	Inside leg 23-25	Leg lenght 70
L	Height 176/180	Waistline 75/80	Inside leg 23-25	Leg lenght 72
XL	Height -	Waistline 79/82	Inside leg 25-27	Leg lenght 74
2XL	Height -	Waistline 83/86	Inside leg 25-27	Leg lenght 76

GUIDELINES FOR PURCHASING THE CORRECT SHORTS

These easy steps will help you find the right shorts for you that will become your faithful training and competition partner:

Put on the trousers and put in place the suspenders and the bottom of the leg so that there are no folds, the feeling once the shorts are worn must be of slight adherence.
Keep the shorts on for a few minutes by bending your legs, and getting into bike position, then try to pinch the fabric in the thigh area and, if once you release the fabric the Lycra returns to its position then you have tried the right size for you.
If, on the other hand, you feel an unpleasant sensation of rubbing or constriction, or if the seams or straps are too tight, try the higher size.
Alé chamois does not require the use of creams because they are soft and comfortable and are designed to be worn next to the skin without any intermediate layer.

Many times the problems encountered during the use of the garments are not attributable to the shorts themselves but to the wrong choice of size or model or to errors in washing the garments (look up), in fact:

These easy steps will help you find the right shorts for you that will become your faithful training and competition partner:

The suspenders, the elastics, the bottom of the leg tend to roll up when wearing the garment but can easily get back into place with a few small gestures.
Lycra must provide a massage to the muscles and a slight compression effect, and only if it remains very close to the body can it perform its function properly.

Accessories

SOCKS

Sizes	Size conversion
S	Size conversion 36 / 39
M	Size conversion 40 / 43
L	Size conversion 44 / 47

SOCKS

Sizes	Size conversion
S	Size conversion 36 / 39
M	Size conversion 40 / 43
L	Size conversion 44 / 47

SHOECOVERS

Model	XS	S	M	L	XL
Neopren	XS -	S 37 / 39	M 40 / 42	L 43 / 45	XL 46 / 48
Rain	XS 34 / 36	S 37 / 38	M 39 / 41	L 42 / 44	XL 45 / 47
Aero	XS 34 / 36	S 37 / 38	M 39 / 41	L 42 / 44	XL 45 / 47
Crono	XS 34 / 36	S 37 / 38	M 39 / 41	L 42 / 44	XL 45 / 47
Winter	XS -	S -	M 38 / 40	L 41 / 43	XL 44 / 47
Nordik	XS -	S -	M 38 / 40	L 41 / 43	XL 44 / 47
Klimatik	XS -	S -	M 38 / 40	L 41 / 43	XL 44 / 47
Shield (Toe cap)	XS -	S 37 / 39	M 40 / 42	L 43 / 45	XL -

TABLE OF SIZES AND MEASUREMENTS

Size	Height	Waistline	Inside leg	Leg length
XS	Height 160	Waisteline 63/66	Inside leg 21-23	Leg lenght 66
S	Height 161/170	Waistline 67/70	Inside leg 21-23	Leg lenght 68
M	Height 171/175	Waistline 71/74	Inside leg 23-25	Leg lenght 70
L	Height 176/180	Waistline 75/80	Inside leg 23-25	Leg lenght 72
XL	Height -	Waistline 79/82	Inside leg 25-27	Leg lenght 74
2XL	Height -	Waistline 83/86	Inside leg 25-27	Leg lenght 76

Jerseys

CHEST

Measure the circumference of the chest at the fullest part keeping the arms down.

WAISTLINE

Measure the circumference at the narrowest point of the bust.

HIP BONE

measure the circumference of the hips at the widest point.

TABLE OF SIZES AND MEASUREMENTS

Measurements expressed in centimeters

Sizes	Waistline	Hip bone	Inside leg
6 Years	Waistline 54-56	Hip bone 67-69	Inside leg 18
8 Years	Waistline 58-60	Hip bone 71-73	Inside leg 19
10 Years	Waistline 62-64	Hip bone 76-78	Inside leg 20
12 Years	Waistline 66-68	Hip bone 81-83	Inside leg 21
14 Years	Waistline 70-72	Hip bone 86-88	Inside leg 22

*Please note that some of our garments have a snug fit, so we recommend ordering at least one size larger if your body measurements are at the limit or between two sizes.
OEach model has been designed to fit differently and take advantage of the intrinsic characteristics of the materials used. The size may also vary based on personal preferences.

Shorts

WAISTLINE

Measure the circumference at the narrowest point of the bust.

HIP BONE

Measure the circumference of the hips at the widest point.

SHORTS

Measure the length of the leg starting from the crotch.

TABLE OF SIZES AND MEASUREMENTS

Measures expressed in centimeters

Size	Waistline	Hip bone	Inside leg
6 Years	Waistline 54-56	Hip bone 67-69	Inside leg 18
8 Years	Waistline 58-60	Hip bone 71-73	Inside leg 19
10 Years	Waistline 62-64	Hip bone 76-78	Inside leg 20
12 Years	Waistline 66-68	Hip bone 81-83	Inside leg 21
14 Years	Waistline 70-72	Hip bone 86-88	Inside leg 22

* Please note that some of our garments have a slim fit, so we recommend ordering at least one size larger , if the body measurements were at the limit or between two sizes.
Each model has been designed to fit differently and take advantage of the intrinsic characteristics of the materials used. The size may also vary according to personal preferences.