Basso Astra
Astra Ultegra Di2 Cosmic S
Enlight your cycling. A high-performing yet versatile carbon road bike, developed around real riders' lives – from training and sportives to weekend exploring.
Colours
Colour options
Available in 3 factory colours. Custom paint and alternative builds can be specified through Basso's configurator – ask in store.
Black Opal
Cobalt Grey
Polar White
Basso Astra
Performance and versatility in one
Astra is designed to suit very different occasions and to amplify the lifestyle of whoever is in the saddle. Some bikes can be customised – Astra was created to be.
Train and race
Racing DNA for early-morning training rides and local races.
Explore and share
Comfortable and practical for group rides, sportives and discovering new roads – handcrafted in Italy.
Go anywhere
Tough enough for long trips and rough roads, refined enough for the café stop.
Versatility and completeness
Light, comfortable and capable
Astra keeps its road vocation but is less twitchy and more comfortable, at around 980g for the frame with Basso's premium technologies.
35mm tyre clearance
Fit wider tyres for comfort and venture beyond tarmac onto light gravel roads.
The most Basso geometry
Derived from Basso's steel race bikes and refined year after year – race DNA made accessible to riders who aren't full-time athletes.
Cockpit options
Microtech stem and All Road handlebar on 105 Di2 builds; Levita integrated carbon cockpit available on Ultegra Di2 builds.
Technologies
Basso details
Integration and adjustability that make Astra easy to live with.
3B Clamp System Gen 2
A hidden three-bolt seatpost clamp, vulcanised for an anti-vibration effect that improves comfort on bumpy surfaces.
Basso Ecosystem
Integrated accessory system with mounts for computers and bags.
Two seatpost setbacks
15mm setback as standard, with a 0mm option available.
Build highlights
UK specification
Astra Ultegra Di2 Cosmic S specification
Specification as supplied by Basso's UK distributor. Components may change subject to availability.
Frameset
- Frame
- Basso Astra carbon, made in Italy. 980g
- Fork
- Basso Astra full carbon, 12x100mm thru axle
- Headset
- Fully integrated
- Bottom bracket
- BB86 86.5 x 41
- Axles
- 100/142mm x 12mm thru axles
- Brakes mount
- Flat mount disc
- Tyre clearance
- 35mm
- Cable routing
- Fully integrated, electronic and mechanical groupsets
- Warranty
- 2 years
Drivetrain
- Groupset
- Shimano Ultegra Di2 12-speed
- Crankset
- Shimano Ultegra Di2 12x
- Cassette
- Shimano 105 12-speed
- Chain
- KMC 12x Silver/Black
Brakes
- Brakes
- Shimano Ultegra hydraulic disc
- Rotors
- Shimano Ultegra Ice-Tech 160/160mm
Wheels & tyres
- Wheels
- Mavic Cosmic S Centerlock Disc UST
- Tyres
- Schwalbe One Performance TLE 700 x 30c
Cockpit & contact points
- Handlebar
- Microtech All Road
- Stem
- Basso Paradigma -8°
- Saddle
- San Marco Monza
- Seatpost
- Basso integral carbon, 15mm setback
Geometry & sizing
Astra geometry
Astra frame geometry. All measurements in millimetres. Not sure of your size? Our bike fit team can help you choose.
Geometry chart
| Size | XXS (45) | XS (48) | S (51) | M (53) | L (56) | XL (58) | XXL (61) |
|---|---|---|---|---|---|---|---|
| Seat tube (A1) | 450 | 480 | 510 | 530 | 560 | 580 | 610 |
| Top tube (B) | 505 | 515 | 525 | 545 | 560 | 575 | 590 |
| Reach (R) | 371.1 | 371.1 | 374.5 | 380.4 | 382.1 | 384.4 | 385.5 |
| Stack (S) | 538.9 | 538.9 | 563.4 | 575.9 | 602.4 | 625.4 | 650.4 |
| Seat angle (C) | 76° | 75° | 75° | 74° | 73.5° | 73° | 72.5° |
| Head angle (D) | 71.8° | 71.8° | 72° | 72.3° | 73.5° | 73.5° | 74° |
| Chainstay (E) | 404 | 404 | 404 | 404 | 406 | 410 | 410 |
| BB to fork (F) | 576.9 | 576.9 | 586.4 | 593.2 | 590 | 599 | 602 |
| Head tube (H) | 125 | 125 | 150 | 162 | 180 | 204 | 228 |
| Bar width c/c (M) | 400 | 400 | 420 | 420 | 420 | 420 | 440 |
| Stem length (N) | 80 | 90 | 100 | 110 | 110 | 120 | 120 |
Ordering
Available from The Cycle Collective
Available to order through The Cycle Collective in Dorking. For availability, sizing advice or a bike fit, call 0203 148 6764 or email hello@thecyclecollective.cc.
Product Information
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Close all zippers before washing
Wash at max 30°C
Hand washing with cold water (or gentle wash cycle)Using mild, high quality detergent
Drip drying in shade, do not machine dry
Avoiding ironing and bleachThe instructions on your garment’s label
Sorting your clothing by color
Avoiding fabric softener.
Our clothing isn’t meant to be dry cleaned and soaking clothing is not ideal
Storage
Unused sealed sachets should be stored inside the box in a well-ventilated, dry place and protected from moisture, heat and direct sunlight. Can be stored for up to 3 years.
Size
Each sachet contains 30g powder.2 x 30g sachets per carton box.
Makes 2x litres of bike cleaner
100% plastic free packaging
Readily biodegradable ingredients
100% water free
Refill your old bottle and help reduce plastic waste
92% saving in packaging compared to 2 x 1L bike cleaner
100% environmentally friendly ingredients, including plant based raw materials
Supplied in a compostable sachet and printed with vegetable inks
FSC recycled card box containing 2 x sachets – that makes 2L of bike cleaner
Safe on all parts and surfaces including carbon fibre
Will not harm seals, cables, disc brake pads or rotors
Alkaline based and free from alcohol, CFCs, EDTA, solvents or acids
Vegan & vegetarian friendlyCruelty free, not tested on animals
Sachet Instructions
1. Grab your empty old bottle of Muc-Off. (You may need a pair of adjustable pliers to remove the trigger from the bottle). Or purchase our Bottle for Life.
2. Fill up to the shoulders of the bottle with 1 litre of lukewarm water for faster formula activation!
3. Carefully cut one corner of the sachet open along the diagonal cut lines.
4. You can carefully pour the sachet straight into the top of the bottle. Or using the box, fold the inside of the lid together using the printed lines as a guide and use this as a funnel to pour the powder into your bottle. (Please see our video for full instructions on this.
5. Screw your spray trigger back onto the top of the bottle. Ensure it’s tight!
6. Shake the bottle vigorously for 30-60 seconds to activate the formula. If you notice any undissolved powder simply keep shakin’ it!
7. Go clean that filthy bike!
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