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+ 194

The Rhyd Ddu

Mountain Biking Trail

Extreme
15.11 mi
4,280 ft
High and hard, with sharp rocks and mountain ridges on Wales's biggest hill.

The Snowdon descent that nobody rides, the Rhyd Ddu is the hardest and most dangerous way down the mountain. It's massively technical and very exposed in places. You need to be very technically able on mountain terrain, both on and off the bike, to attempt it and significant chunks of the descent are unrideable. Based on all that, it does without saying that you don't want to be tackling the route in bad weather. That said, if you've ticked everything else on Snowdon, it's a proper adventure. If you're heading for the Rhyd Ddu, you'll presumably have ridden Snowdon before and know the way up. (If you haven't, go and ride the Ranger track first, then come back.) So, once you've finished at the summit, follow the track over the summit past the cafe and down a track that's as steep and rocky as you'd expect, heading for the narrow ridge straight ahead. Now, if you think you can ride along a thin rocky scramble with a sheer drop on one side, you can't. Get off, grab your bike with one hand, the rocks with the other and scramble! Keep right where the track forks at the end of the ridge and, if you've a head for heights, you'll be able to ride the fantastic airy traverse that follows. Survive that and you're past the big drops, but into the technical riding. It's steep and loose with rocks, drops and switchbacks. The rocks get bigger and bigger until you reach a properly tricky section. Ride it and you can definitely give yourself a pat on the back. After this the trail eases as it drops to Rhyd Ddu village and the pub. Back on the bikes, the route joins the A4085 until, just after the youth hostel, it turns right up the Snowdon Ranger track. Climb up through the zig-zags and then, as the trail flattens, turn left up a final steep grassy slope that carries you over into Telegraph Valley for a final, flat out run to Llanberis. Route info – a trip up Snowdon, down the Rhyd Ddu and back over to Llanberis is around 24 kilometres, with 1,300 metres of climbing. On a serious note, while Snowdon is fantastic fun to ride, there are a couple of things to note: Every man and his dog tends to head up Snowdon when the weather's good, which means a lot of walkers to dodge. And when the weather's bad, you might find yourself looking at snow, sub-zero temperatures and high winds. Pick your day carefully. In addition, there's a voluntary restriction on riding Snowdon between 10 a.m. And 5 p.m. From 1 May to 30 September. Please respect this, if only because it get so busy with walkers that it won't be much fun for you or them if you ride during these peak hours. Outside the restricted times is fine, meaning really early or late starts if you want to ride in summer, or any time you want during the rest of the year. Written by FATMAP Official
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Strava Routes

Route and Elevation

Segments

NameDistanceElev. Diff.Avg. Grade
Lights Club to 300.34 mi-7 ft-0.1%
Summit Fever3.90 mi2,333 ft11.3%
Penceunant Isaf ascent0.39 mi203 ft9.5%
Llanberis to halfway house2.41 mi1,362 ft10.6%
For your friendship, no hill is too steep, or too hard0.76 mi394 ft9.7%
Badger 17 Snowdon Climb4.42 mi3,038 ft13.0%
Llanberis to Llechog foot2.94 mi1,670 ft10.7%
Full Llanberis to summit4.21 mi3,205 ft14.3%
Tarmac Misery0.28 mi240 ft16.2%
Tarmac to Snowdon0.50 mi302 ft11.3%
Cattlegrid i Penceunant0.19 mi180 ft17.7%
Snowdon climb4.24 mi2,907 ft12.9%
From the gate to the top3.84 mi2,694 ft13.3%
Llanberis Path to Half Way House1.70 mi942 ft10.5%
Gate to half way up Llanberis Path1.06 mi594 ft10.6%
Llanberis climb to half way cafe :-)1.39 mi715 ft9.7%
Half way cafe to bridge0.82 mi686 ft15.7%
Bridge to top viewing area 0.83 mi676 ft14.9%
Rhyd Ddu - full3.71 mi-2,785 ft-13.9%
Top to bottom Rhyd duu full decent summit to A4085 road 3.70 mi-2,736 ft-14.0%
Rhyd Ddu Proper3.61 mi-2,736 ft-14.3%
Rhyd Ddu DH from the cafe to the rail way 3.60 mi-2,858 ft-15.0%
Rhyd ddu top DH inc Z0.77 mi-738 ft-18.1%
Rhyd Ddu2.21 mi-1,877 ft-15.8%
Rhyd ddu btm of Z to top gate0.18 mi-69 ft-6.9%
Rhyd ddu top gate to 2nd to top gate0.34 mi-410 ft-22.3%
Rhyd ddu midel section 0.55 mi-531 ft-18.2%
Rhyd ddu middle btm part section0.33 mi-292 ft-16.5%
Rhud ddu btm middle section DH0.54 mi-322 ft-11.3%
Rhyd ddu Btm path to road 0.72 mi-351 ft-9.2%
fast bends !0.68 mi-102 ft-2.8%
Rhyd Ddu to Snowdon Ranger1.42 mi-125 ft-1.3%
i lawr ir llyn0.93 mi-118 ft-2.4%
Ranger - Telegraph1.35 mi1,063 ft14.9%
Btm of Rangers path to gate Lh turn 0.60 mi397 ft12.4%
TELEGRAPH VALLEY DESCENT1.66 mi-686 ft-7.8%
Telegrah valley top section1.00 mi-436 ft-8.1%
Telegraph Valley Descent1.50 mi-591 ft-7.4%
Telegraph DH To Gate on right 1.95 mi-751 ft-7.3%
Telegraph on the descent0.87 mi-390 ft-8.4%
fast decent from gate0.21 mi-102 ft-9.0%
Cresta Run0.65 mi-348 ft-10.1%