Slave Posted February 10, 2009 Posted February 10, 2009 I read an article in a backcopy of Bicycling magazine that gave some tipson hill training. In the same issue, they also give a detailed program for doin a 100 k race in particular time bands. So what I want to know is they mention hills with 4 to 6% gradients and 4 to 8% gradients. How does one grade a hill without using a GPS. There must be some way to calculate it. Please help.
NotSoBigBen Posted February 10, 2009 Posted February 10, 2009 Dunno but Comaro this morning in 5th gear felt like 45% ........
NotSoBigBen Posted February 10, 2009 Posted February 10, 2009 Dunno but Comaro this morning in 5th gear felt like 45% ........
TNT1 Posted February 10, 2009 Posted February 10, 2009 You need some way to measure the vertical gain. The % gradient of a hill is the vertical gain divided by the horizontal distance traveled.
markStockton Posted February 10, 2009 Posted February 10, 2009 You need some way to measure the vertical gain. The % gradient of a hill is the vertical gain divided by the horizontal distance traveled. X (100/1)
Slave Posted February 10, 2009 Author Posted February 10, 2009 'k So the Lido hill is 4 km long and the virtical climb is 184 meters. According tou your calculation the hill would have a 4.6% gradient. Also that would be an average because we all know that Lido starts off gentle and gets vicious towards the top near eagles nest. Bliksem, 8 % must be like going up a cliff.
TNT1 Posted February 10, 2009 Posted February 10, 2009 You need some way to measure the vertical gain. The % gradient of a hill is the vertical gain divided by the horizontal distance traveled.
Frosty Posted February 11, 2009 Posted February 11, 2009 According to my calculation, or should that be my Garmin's calculation, the average gradient is only 2.6% (from crossing over the klipriver to the top of the lido climb going up to Walkerville). 125m / 4730m x 100 = 2.642706
Bike Mob Posted February 11, 2009 Posted February 11, 2009 Rode Constantia Nek (offroad) on Saturday...loads of 15% gradient, average is about 10% and some spots are 20%!!! this is as monitored by my polar CS600 in real time
Slave Posted February 11, 2009 Author Posted February 11, 2009 Frosty, I was thinking more of the the "other" Lido hil". The one going up from The Lido to Eagles nest. According to google earth, the climb is about 184 m. The calculation though (dividing gain and distance) assumes though that the hill has a constant rate of climb. The Lido hill from Swartkoppies / Main road to eagle nest is just on 4 k's but starts off gentle and then gets steeper towrds the top. So, it's all conjecture really. I have this training program I want to start following and I need a long hill but finding one with a constant gradient is never going to happen. Maybe I should just go to Sabie and then ride up Long Tom to Lydenberg. Anyone ever done that? Love to hear your experience of it.
Frosty Posted February 11, 2009 Posted February 11, 2009 Oops, my mistake... 3.844% from the traffic lights (Swartkoppies Rd)
Frosty Posted February 11, 2009 Posted February 11, 2009 Did Long Tom pass last year from the Lydenberg side, that after riding from Waterval Boven first and then we still had to ride back. Gave us a total of 185Km. Wasn't as hard as I initially thought it would be, but probably over did it resulting in a hard ride back to W-Boven. Will definitely like to do it from the Sabie side to Lydenberg and back.
TNT1 Posted February 11, 2009 Posted February 11, 2009 Sabie side is far more fun... Plenty of flat sections to recover, but the last couple of kms are seriously steep. Good fun...
Spinnekop Posted February 11, 2009 Posted February 11, 2009 Will definitely like to do it from the Sabie side to Lydenberg and back. Very nice with switchbacks and long steady climbing...From Sabie to the top of LongTom...... Average Speed 20.1 km/h Distance 34.8 km Average Cadence 75 rpm Ascent 1299 m Grade % 2.9 %
Slowbee Posted February 11, 2009 Posted February 11, 2009 Sabie side is far more fun... Plenty of flat sections to recover' date=' but the last couple of kms are seriously steep. Good fun... [/quote'] you mean you actually spend time on a bicycle ?
TNT1 Posted February 11, 2009 Posted February 11, 2009 But that said, you haven't lived till you've done Sabie-Lydenburg-Pilgrims (over Robbers)-Sabie (over the Bonnet)
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