The Datum marks a turning point in road riding; the end of our unhealthy love affair with the 23c tyre.
And, herein lies the key to the new Datum – its’ 33c rubber boots. Turns out they’re not as slow and energy sapping as folks first thought and, we could even get used to what feels like riding on fast, 80psi pillows of air.
People are coming round to the fact that maybe, just maybe what the pro’s are using perhaps isn’t quite the right choice for them. It’s this ethos we’ve tried to emulate with the new Datum - distinctly traditional elements (in the return to the larger volume tyres of yesteryear) bought bang-up-to-date with the pairing of of disc brakes and a modern carbon frame.
BB86 Press-Fit Bottom Bracket provides the basis for a stiffer, more efficient pedalling platform and wider spaced bearings which helps spreads the load increasing longevity to help you keep spinning smoothly mile after mile.
Shimano continue to pave the way in regards to hydraulic braking in dropbar format. Their new ST-RS505 shifter units pick up where the ST-RS685 left off, combining conventional mechanical 11sp shifting and dedicated hydraulic braking in a more affordable, accessible package. They offer consistent, powerful braking and exceptional lever modulation all backed-up by Shimano's legendary reliability. A real game changer.
Brand new, larger 700x33c Challenge Strada Bianca clinchers use the same proven tread as found on their Paris-Roubaix model on a larger volume 33c casing. Competeively light @ 355g considering there's a PPS (puncture protection strip) underneath the tread too!
Naturally there are mudguard eyelets – x2 on the inside of either fork leg just above the caliper which are still low enough to provide a stiff, supportive mount but unobtrusive if not in use, and threaded eyelets on the back of fork crown, backside of the bb shell and underside of the seatstay bridge (it’s only there to provide a mounting point for a mudguard). 32/33mm tyres and 45mm full-length guards should fit fine.
There are currently no questions and answers for this product.
There are currently no reviews for this product.
Frame: 24/30T Monocoque Carbon Road Disc w/ Tapered Headtube & Fully Internal Cable Routing
Fork: Full Carbon Fork w/ 1-1/2" - 1-1/8" Tapered Steerer &
Headset: FSA Orbit C-40 / No.42 Integrated
Colour: Raw Carbon Gloss Black
Weight: 9.04kg (Med w/o pedals)
Shifters: Shimano ST-RS505
Rear Derailleur: Shimano 105 RD-5800-GS
Front Derailleur: Shimano 105 FD-5800
Chainset: Shimano 105 FC-5800, 50/34T
Bottom Bracket: Shimano BB-RS500, Press-fit 86.5mm
Chain: KMC X11
Freewheel: Shimano CS-HG5800, 11-32T
Tyres: Challenge Strada Bianca CL Plus, 700x33c
Brakes: Shimano BR-RS505 w/ SM-RT86 160mm Icetech Rotors
Brake Levers: w/ Shifters
Handlebars: Genesis RandoX Flared (D125/R70mm)
Stem: Genesis Road (+/-7
Grips: Genesis Microfiber Anti-Slip w/ VexGel
Saddle: Genesis Road Race
|1 - Horizontal Toptube Length (mm)||526||542||561||579||595|
|2 - Seat Angle (°)||73.5||73.5||73.25||73||73|
|3 - Headtube Length (mm)||115||135||155||175||195|
|4 - Head Angle (°)||72||72||72||72||72|
|5 - Seat Tube Length (C-T, mm)||460||490||520||540||570|
|6 - BB Drop (mm)||72||72||72||72||72|
|7 - Chanstay Length (mm)||420||420||420||420||420|
|8 - Fork Offset (mm)||50||50||50||50||50|
|9 - Trail (mm)||59||59||59||59||59|
|10 - Wheelbase Length (mm)||985||1001||1017||1033||1050|
|12 - Stack (mm)||544||563||585||602||621|
|13 - Reach (mm)||365||375||385||395||405|