{"id":183943,"date":"2018-05-18T08:45:14","date_gmt":"2018-05-18T06:45:14","guid":{"rendered":"https:\/\/www.mtb-mag.com\/?p=183943\/"},"modified":"2018-05-18T08:50:13","modified_gmt":"2018-05-18T06:50:13","slug":"first-look-cannondale-presents-the-new-f-si","status":"publish","type":"post","link":"https:\/\/www.mtb-mag.com\/en\/first-look-cannondale-presents-the-new-f-si\/","title":{"rendered":"[First Look] Cannondale Presents the new F-Si"},"content":{"rendered":"

There has been a lot of chatter buzzing around regarding the new Cannondale F-Si, and finally we can introduce it to you.\u00a0The biggest change is in the Lefty, which has been redesigned from scratch and which loses its double crown design.\u00a0It is called Lefty Ocho, which is eight in Spanish, because it is the eighth revision of the fork.
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Details<\/h2>\n

Let’s start\u00a0with Lefty.\u00a0Developed by a group of engineers captained by Jeremiah Boobar, a RockShox\u00a0engineer who migrated to\u00a0Cannondale a few years ago, the new Lefty has undergone significant weight loss, settling on the declared values \u200b\u200bof 1,446 grams for the carbon version (250 grams less) and 1,735 gr for the aluminum one.\u00a0100 mm of travel with an offset of 55mm for 29 inches and 50mm for 27.5.\u00a0The latter is mounted on the XS size of the F-Si, the only model with the smaller diameter wheels.\u00a0The steerer is a standard tapered, from 1.5 “to 1 1\/8”.<\/p>\n

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You can adjust the compression by 6 clicks, while the rebound can be fine tuned within 23 clicks. A remote handlebar control is required to open or close the lockout.\u00a0Note that to open the fork you need to press the remote button, and then the lockout is active by default.\u00a0Being an air fork, its\u00a0pressure in relation to the weight of the rider is adjusted\u00a0via a valve on the bottom of the fork, near the rebound knob.\u00a0The adjustment range is designed for riders weighing between 45 and 105 kg.<\/p>\n

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Since the old Lefty was famous for its rigidity, Cannondale tried to continue its legacy with the Ocho, and Cannondale claims to have reached a stiffness (torsional, lateral and braking) greater than the SID and the 32\u00a0at 9% and 11% respectively.\u00a0Being an upside down fork, the hub is oversized and remains identical to the one used previously.<\/p>\n

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The front brake caliper can be removed very quickly by unscrewing the Allen screw half a turn, making sure you have first pressed the safety pin that locks it.\u00a0This pin is rather delicate and if you force the screw without pressing it breaks.\u00a0Nothing dramatic, because you can continue to ride without it, but it is worth pointing out.<\/p>\n

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Some details of the carbon Ocho.\u00a0In the third photo you can see the monoblock, the one piece upper\/crown assembly that is\u00a0made from\u00a0carbon fiber.<\/p>\n

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Even the hydraulics and inner workings have changed completely, with a new sealed cartridge and the classic needle bearings of Lefty models past, distributed on three sides of what is called Delta Cage, ie the upper part of the fork, triangular shaped.\u00a0Compared to the old one, which was\u00a0four sided and on which the bearings moved independently of each other, here the bearings are joined in a kind of block, and it is no longer necessary to have to do a reset by going to the end of stroke to realign them .\"\"<\/a><\/p>\n

The frame of the F-Si Carbon 1 and WC is in Ballistec Hi-Mod carbon with a weight of 900 grams (claimed) in size M, 90 grams less than the previous model.\u00a0Models 2,3,4 and 5 are in “normal” Ballistec.\u00a0It maintains the 6mm rear asymmetry on the\u00a0drive side, thus\u00a0leaving enough space for 2.3 “tire fitment and to have leftover in the event of mud. The hub is boost, and the wheel will require a specific\u00a0dishing due to the offset.<\/p>\n

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The rear through axle is a 12x148mm, with a precaution on the frame to allow the wheel to rapidly be extracted after just a few turns of the Allen wrench. Basically the hole in which the axle is inserted is open towards the bottom of the dropout.<\/p>\n

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The seatpost lock is integrated into the frame, making room for the part outside the frame, which will flex more and absorb the vibrations better.\u00a0It is a\u00a0Save<\/a>\u00a0seatpost\u00a0with zero offset<\/a>\u00a0.<\/p>\n

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Geometry<\/h2>\n

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View App<\/h2>\n

With the free “View” app, scanning the code positioned on the fork’s head, you can go to see the interior of the Ocho, how to do maintenance, how to disassemble the wheel and what interventions have already been done (if the mechanic has it updated during the service).\u00a0Approaching the phone the fork and its interior are enlarged, showing the details.<\/p>\n

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First ride<\/h2>\n

The track conditions did not allow a serious test, since I would have been more busy trying not to fall than anything else.\u00a0Here’s how it was in the afternoon.<\/p>\n