Compare bikes: Compare Btwin Ultra 900 Aluminium Frame Road Bike - Black/Grey/Yellow (2017) vs. Specialized Allez Allez E5 Elite (2017) - Findabike

KMC X10, 10-speed w/reusable MissingLink

Shimano 105 52 x 36 chainset. Crank length varies according to size of bike: XS, S: 170 mm. M: 172.5 mm. L / XL: 175 mm. SHIMANO 105 11S 11 x 28. (11/12/13/14/15/17/19/21/23/25/28).

Praxis Alba

Front: Shimano Tiagra, clamp-on - Rear: Shimano Tiagra 4700, 10-speed

Shimano Tiagra STI, 10-speed

Shimano Tiagra, 10-speed, 12-28t

The B'Twin Ultra Evo Vario fork is used exclusively on the B'Twin Ultra Evo Vario frame. The combination of carbon and aluminium is the ideal choice for perfect synergy between the B'Twin Ultra Evo Vario frame and fork. Brake located as close as possible to the fork. Weight: 550 g.

FACT carbon fiber

Our new B'TWIN ULTRA frame is derived from the Evo Vario concept. Aluminium is an ideal choice for obtaining an excellent propulsion-to-comfort ratio. The variable thickness tubes considerably reduce the weight. The cables are built into the frame. This frame is UCI-approved. Weight: 1400 g in size M.

Specialized E5 Premium Aluminum, fully-manipulated tubing w/smooth welds, 1-1/8" lower bearing

Specialized, 3D forged alloy, 4-bolt, 7-degree rise

MAVIC YKSION tyre ensures a good connection with the AKSIUM 17c rim. 700 x 25.

Front: Espoir Sport, 700x25mm, 60TPI, wire bead, double BlackBelt protection - Rear: Espoir Sport, 700x25mm, 60TPI, wire bead, double BlackBelt protection

New Mavic Aksium 17c wheels. Wider rim so you can use wider, more comfortable tyres. Height: 21 mm. ETRTO dimension: 622 x 17c. Pair, without tyres: 1880 g.

Front: Axis Sport - Rear: Axis Sport

Shimano 105 Direct Mount brakes on the fork: their dual-pivot technology offers precision and power. Stays perfectly centred thanks to DPB technology. Brakes made from cast aluminium and covered with powder paint that withstands frequent washing.

Front: AXIS 1.0 - Rear: AXIS 1.0

Compact B'Twin 6061-T6 aluminium handlebar is scaled to the bike size. The handlebar weighs 320 g in size 420 mm. End-end width: XS, S 400 mm. M, L 420 mm. XL 440 mm. 6061 T6 aluminium stem. 140 g in size 110 mm. XS 80 mm. S, M 100 mm. L 110 mm. XL 130 mm. The headset uses long-lasting sealed bearings and has a 1-1/8" diameter at the top and 1-1/4" at the bottom.

Specialized Shallow Drop, alloy, 125mm drop, 70mm short-reach

B'TWIN Comp Ergo Chromo saddle: chosen for its comfort and efficiency. Weight: 257 g. B'TWIN Competition aluminium seat post. Diameter: 31.6 mm. Length: 350 mm. Weight: 240 g.

Body Geometry Toupé Sport, steel rails, 143mm

Alloy, 12.5mm offset, 2-bolt clamp, 27.2mm

Specialized, 3D forged alloy, 4-bolt, 7-degree rise

Pedals not included.